Film comprising the following layers: a) a first outer layer of a moulding composition comprising a polyamide content of at least 35% by weight, based on the overall moulding composition, b) a middle layer of a moulding composition comprising at least 50% by weight, based on the overall moulding composition, of a polymer fraction consisting of the following components: I. 30 to 95 parts by weight of polyamide and II. 5 to 70 parts by weight of polyolefin, where the sum of the parts by weight adds up to 100, and c) a second outer layer of a moulding composition comprising a polyamide content of at least 35% by weight, based on the overall moulding composition, where the layers according to a), b) and c) directly follow one another and where adhesion of the film composite is modified by a measure selected from 1. use of a polyamide elastomer selected from polyetheresteramide and polyetheramide as the polyamide component in the layer according to a), such that the moulding composition of this layer contains 1 to 25% by weight of polyamide elastomer; 2. use of a polyamide elastomer selected from polyetheresteramide and polyetheramide as the polyamide component in the moulding composition of the layer according to b) such that the moulding composition of this layer contains 1 to 15% by weight of polyamide elastomer; and 3. use of a polyamide elastomer selected from polyetheresteramide and polyetheramide as the polyamide component in the moulding composition of the layer according to c) such that the moulding composition of this layer contains 1 to 25% by weight of polyamide elastomer, where percentages under 1., 2. and 3. are based on the respective moulding composition. a) a first outer layer of a moulding composition comprising a polyamide content of at least 35% by weight, based on the overall moulding composition, b) a middle layer of a moulding composition comprising at least 50% by weight, based on the overall moulding composition, of a polymer fraction consisting of the following components: I. 30 to 95 parts by weight of polyamide and II. 5 to 70 parts by weight of polyolefin, where the sum of the parts by weight adds up to 100, and I. 30 to 95 parts by weight of polyamide and II. 5 to 70 parts by weight of polyolefin, where the sum of the parts by weight adds up to 100, and c) a second outer layer of a moulding composition comprising a polyamide content of at least 35% by weight, based on the overall moulding composition, where the layers according to a), b) and c) directly follow one another and where adhesion of the film composite is modified by a measure selected from 1. use of a polyamide elastomer selected from polyetheresteramide and polyetheramide as the polyamide component in the layer according to a), such that the moulding composition of this layer contains 1 to 25% by weight of polyamide elastomer; 2. use of a polyamide elastomer selected from polyetheresteramide and polyetheramide as the polyamide component in the moulding composition of the layer according to b) such that the moulding composition of this layer contains 1 to 15% by weight of polyamide elastomer; and 3. use of a polyamide elastomer selected from polyetheresteramide and polyetheramide as the polyamide component in the moulding composition of the layer according to c) such that the moulding composition of this layer contains 1 to 25% by weight of polyamide elastomer, where percentages under 1., 2. and 3. are based on the respective moulding composition. 1. use of a polyamide elastomer selected from polyetheresteramide and polyetheramide as the polyamide component in the layer according to a), such that the moulding composition of this layer contains 1 to 25% by weight of polyamide elastomer; 2. use of a polyamide elastomer selected from polyetheresteramide and polyetheramide as the polyamide component in the moulding composition of the layer according to b) such that the moulding composition of this layer contains 1 to 15% by weight of polyamide elastomer; and 3. use of a polyamide elastomer selected from polyetheresteramide and polyetheramide as the polyamide component in the moulding composition of the layer according to c) such that the moulding composition of this layer contains 1 to 25% by weight of polyamide elastomer,