Method for producing a decorated, mineral composite body using at least one multilayer film (1, 1'), the method comprising the following steps: a) providing at least one mould element, preferably shuttering, having at least one outer surface and at least one inner surface, b) applying a flowable or plastically deformable, mineral building material mixture comprising water and at least one mineral binder to the at least one inner surface of the mould element, preferably shuttering, c) at least partially setting the mineral building material mixture so as to obtain a dimensionally-stable, mineral green body, and d) at least partially hardening the mineral building material mixture, characterised in that the multilayer film (1, 1') has a carrier layer (10, 10') and a transfer layer (13, 13') which is disposed on the carrier layer (10, 10') and contains at least one decorative element, wherein the transfer layer (13, 13') has at least one polymer-containing primer layer on the side of facing away from the carrier layer (10, 10'), and wherein I) the at least one multilayer film (1, 1') is disposed before step b) with the side of the carrier layer (10, 10') facing away from the at least one polymer-containing primer layer on the at least one inner surface of the provided mould element, preferably shuttering, and in step b) the at least one polymer-containing primer layer is brought into contact at least in part with the flowable or plastically deformable, mineral building material mixture, whereby a decorated, dimensionally-stable, mineral green body is obtained in step c), and/or wherein II) the at least one multilayer film (1, 1') is disposed in and/or after step c) with the at least one polymer-containing primer layer at least partially on the dimensionally-stable, mineral green body, whereby a decorated, dimensionally-stable, mineral green body is obtained, and wherein, in the case of alternatives I) and II), a decorated, mineral composite body is obtained after step d), wherein the at least one polymer-containing primer layer comprises at least one polymer that has at least one functional group capable of dissociation, and wherein the at least one functional group capable of dissociation is in each case, independently of one another, an amino group and/or a hydroxyl group and/or a free acid group, and/or a blocked acid group, and/or a combination thereof. a) providing at least one mould element, preferably shuttering, having at least one outer surface and at least one inner surface, b) applying a flowable or plastically deformable, mineral building material mixture comprising water and at least one mineral binder to the at least one inner surface of the mould element, preferably shuttering, c) at least partially setting the mineral building material mixture so as to obtain a dimensionally-stable, mineral green body, and d) at least partially hardening the mineral building material mixture, characterised in that the multilayer film (1, 1') has a carrier layer (10, 10') and a transfer layer (13, 13') which is disposed on the carrier layer (10, 10') and contains at least one decorative element, wherein the transfer layer (13, 13') has at least one polymer-containing primer layer on the side of facing away from the carrier layer (10, 10'), and wherein I) the at least one multilayer film (1, 1') is disposed before step b) with the side of the carrier layer (10, 10') facing away from the at least one polymer-containing primer layer on the at least one inner surface of the provided mould element, preferably shuttering, and in step b) the at least one polymer-containing primer layer is brought into contact at least in part with the flowable or plastically deformable, mineral building material mixture, whereby a decorated, dimensionally-stable, mineral green body is obtained in step c), and/or wherein II) the at least one multilayer film (1, 1') is disposed in and/or after step c) with the at least one polymer-containing primer layer at least partially on the dimensionally-stable, mineral green body, whereby a decorated, dimensionally-stable, mineral green body is obtained, and wherein, in the case of alternatives I) and II), a decorated, mineral composite body is obtained after step d), wherein the at least one polymer-containing primer layer comprises at least one polymer that has at least one functional group capable of dissociation, and wherein the at least one functional group capable of dissociation is in each case, independently of one another, an amino group and/or a hydroxyl group and/or a free acid group, and/or a blocked acid group, and/or a combination thereof.