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      <Form990ScheduleAPartVIGrp>
        <FormAndLineReferenceDesc>Schedule A, Part II, Section A:</FormAndLineReferenceDesc>
        <ExplanationTxt>NCM adopted a fiscal year ended September 30, 2019, which created a short year tax filing requirement with the Internal Revenue Service. Schedule A, Part II, Column (a) shows information from the short year starting July 1, 2019, through September 30, 2019. Schedule A, Part II, Column (b) shows information from October 1, 2019, through September 30, 2020. Schedule A, Part II, Column (c) shows information from October 1, 2020, through September 30, 2021. Schedule A, Part II, Column (d) shows information from October 1, 2021, through September 30, 2022. Schedule A, Part II, Column (e) shows information from October 1, 2022, through September 30, 2023.</ExplanationTxt>
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        <OtherCostOrOtherBasisAmt>849633</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>369167</DepreciationAmt>
        <BookValueAmt>480466</BookValueAmt>
      </EquipmentGrp>
      <OtherLandBuildingsGrp>
        <OtherCostOrOtherBasisAmt>6002514</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>2884825</DepreciationAmt>
        <BookValueAmt>3117689</BookValueAmt>
      </OtherLandBuildingsGrp>
      <TotalBookValueLandBuildingsAmt>8893236</TotalBookValueLandBuildingsAmt>
      <OtherAssetsOrgGrp>
        <Desc>Right-of-Use Asset</Desc>
        <BookValueAmt>5137052</BookValueAmt>
      </OtherAssetsOrgGrp>
      <OtherAssetsOrgGrp>
        <Desc>Security Deposit</Desc>
        <BookValueAmt>10251</BookValueAmt>
      </OtherAssetsOrgGrp>
      <TotalBookValueOtherAssetsAmt>5147303</TotalBookValueOtherAssetsAmt>
      <OtherLiabilitiesOrgGrp>
        <Desc>Lease Liability - Operating</Desc>
        <Amt>6749737</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>Amortized Financing Cost</Desc>
        <Amt>-72711</Amt>
      </OtherLiabilitiesOrgGrp>
      <OtherLiabilitiesOrgGrp>
        <Desc>Accrued Interest on Loans</Desc>
        <Amt>23088</Amt>
      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>6700114</TotalLiabilityAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
      <TotalRevEtcAuditedFinclStmtAmt>5501404</TotalRevEtcAuditedFinclStmtAmt>
      <NetUnrealizedGainsInvstAmt>3042</NetUnrealizedGainsInvstAmt>
      <DonatedServicesAndUseFcltsAmt>380868</DonatedServicesAndUseFcltsAmt>
      <OtherRevenueAmt>27584</OtherRevenueAmt>
      <RevenueNotReportedAmt>411494</RevenueNotReportedAmt>
      <RevenueSubtotalAmt>5089910</RevenueSubtotalAmt>
      <RevenueNotReportedFinclStmtAmt>0</RevenueNotReportedFinclStmtAmt>
      <TotalRevenuePerForm990Amt>5089910</TotalRevenuePerForm990Amt>
      <TotExpnsEtcAuditedFinclStmtAmt>7486176</TotExpnsEtcAuditedFinclStmtAmt>
      <DonatedServicesUseFcltsAmt>380868</DonatedServicesUseFcltsAmt>
      <OtherExpensesIncludedAmt>27584</OtherExpensesIncludedAmt>
      <ExpensesNotReportedAmt>408452</ExpensesNotReportedAmt>
      <ExpensesSubtotalAmt>7077724</ExpensesSubtotalAmt>
      <ExpensesNotRptFinclStmtAmt>0</ExpensesNotRptFinclStmtAmt>
      <TotalExpensesPerForm990Amt>7077724</TotalExpensesPerForm990Amt>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part X, Line 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>NCM evaluates uncertainty in income tax positions based on a more-likely-than-not recognition standard. If that threshold is met, the tax position is then measured at the largest amount that is greater than 50% likely of being realized upon ultimate settlement. As of September 30, 2023, there are no accruals for uncertain tax positions. If applicable, NCM records interest and penalties as a component of income tax expense. Tax years from 2020 through the current year remain open for examination by federal and state tax authorities.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part XI, Line 2d - Other Adjustments:</FormAndLineReferenceDesc>
        <ExplanationTxt>Gift Shop Supplies 27,584.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part XII, Line 2d - Other Adjustments:</FormAndLineReferenceDesc>
        <ExplanationTxt>Gift Shop Supplies 27,584.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
    <IRS990ScheduleJ documentId="RetDoc1042400001">
      <CompensationCommitteeInd>X</CompensationCommitteeInd>
      <IndependentConsultantInd>X</IndependentConsultantInd>
      <WrittenEmploymentContractInd>X</WrittenEmploymentContractInd>
      <BoardOrCommitteeApprovalInd>X</BoardOrCommitteeApprovalInd>
      <SeverancePaymentInd>0</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>0</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>0</EquityBasedCompArrngmInd>
      <CompBasedOnRevenueOfFlngOrgInd>0</CompBasedOnRevenueOfFlngOrgInd>
      <CompBsdOnRevRelatedOrgsInd>0</CompBsdOnRevRelatedOrgsInd>
      <CompBsdNetEarnsFlngOrgInd>0</CompBsdNetEarnsFlngOrgInd>
      <CompBsdNetEarnsRltdOrgsInd>0</CompBsdNetEarnsRltdOrgsInd>
      <AnyNonFixedPaymentsInd>0</AnyNonFixedPaymentsInd>
      <InitialContractExceptionInd>0</InitialContractExceptionInd>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>Crystal Bowyer</PersonNm>
        <TitleTxt>President and CEO</TitleTxt>
        <BaseCompensationFilingOrgAmt>248881</BaseCompensationFilingOrgAmt>
        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
        <BonusFilingOrganizationAmount>37500</BonusFilingOrganizationAmount>
        <BonusRelatedOrganizationsAmt>0</BonusRelatedOrganizationsAmt>
        <OtherCompensationFilingOrgAmt>8625</OtherCompensationFilingOrgAmt>
        <OtherCompensationRltdOrgsAmt>0</OtherCompensationRltdOrgsAmt>
        <DeferredCompensationFlngOrgAmt>0</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>13911</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>308917</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
    </IRS990ScheduleJ>
    <IRS990ScheduleL documentId="RetDoc1042800001">
      <BusTrInvolveInterestedPrsnGrp>
        <NameOfInterested>
          <PersonNm>Robert Micek</PersonNm>
        </NameOfInterested>
        <RelationshipDescriptionTxt>See Sch. L, Part V</RelationshipDescriptionTxt>
        <TransactionAmt>123000</TransactionAmt>
        <TransactionDesc>Lease of Administrative Office Space</TransactionDesc>
        <SharingOfRevenuesInd>0</SharingOfRevenuesInd>
      </BusTrInvolveInterestedPrsnGrp>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Schedule L, Part IV, Line 1, Column (b):</FormAndLineReferenceDesc>
        <ExplanationTxt>Robert Micek is the Executive Vice President and Chief Financial Officer of the American Beverage Association (ABA). NCM subleases administrative office space from the ABA. The business relationship was disclosed on the annual conflict of interest agreement, third party brokers were used to identify the space, and the sublease agreement was signed by a different officer at the ABA.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleL>
    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>The Form 990 is reviewed by the president &amp; CEO as well as the director of operations and is presented to the board of directors for review and acceptance.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>The conflict of interest policy is regularly monitored. Conflicts that arise are handled on a case-by-case basis. Note: A related party contract was given to the Bennett Group for construction at the museum. In accordance with federal law, all work was evaluated independently by a construction auditor and other construction experts, and information was presented to and reviewed by the board of trustees without a related party present. Additionally, a signed acknowledgement of the museum's conflict of interest policy was signed by the related party board member and is kept on file.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 15a</FormAndLineReferenceDesc>
        <ExplanationTxt>The board executive committee annually evaluates the compensation of the president &amp; CEO, and utilizes comparable data and information to ensure market rates.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>Governing documents, policies, and financial statements are available for review upon request.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part XI, line 9:</FormAndLineReferenceDesc>
        <ExplanationTxt>Restatement -662,643.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part XI, Line</FormAndLineReferenceDesc>
        <ExplanationTxt>Net assets with donor restrictions as of October 1, 2022 have been adjusted for a charitable remainder trust and a pledge recognized in prior years, but were determined to not be collectable from the donors. In addition, net assets without donor restrictions have been adjusted for a loss on deposits not recognized in prior years. The corrections have no effect on the results of the current year's activities; however, the cumulative effect decreases the net assets with donor restrictions by $528,711, decreases net assets without donor restrictions by $133,932, and decreases the change in net assets by $662,643 for the year ended September 30, 2022. Previously issued net asset balances have been restated to reflect these changes.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleO>
  </ReturnData>
</Return>