Multilayer film comprising 2 thin layers D and E of a thermoplastic material bonded together by a continuous layer A which has a thickness ranging from 7 to 50 μm and consists of an HMPSA composition (a) comprising, on the basis of the total weight of said composition: - from 40% to 70% by weight of a composition (a1) of styrene block copolymers comprising at least one elastomer block, said composition (a1) consisting, on the basis of its total weight: - of 30% to 90% by weight of at least one diblock copolymer chosen from the group comprising SI, SBI, SIB, SB, SEB and SEP, and - of 10% to 70% by weight of at least one triblock copolymer chosen from the group comprising SIS, SIBS, SBS, SEBS and SEPS; the total content of styrene units of said composition (a1) ranging from 10% to 40% by weight on the basis of the total weight of a1; and - from 30% to 60% by weight of one or more tackifying resins (a2); said multilayer film being further characterized in that the adhesive layer A is: - connected to the layer D by means of a tie layer B, and - connected to the layer E by means of a tie layer C; each of the 2 layers B and C respectively consisting of a composition (b) and (c) each comprising: - from 50% to 98% by weight of a polyolefin (P) chosen from a polyethylene (PE) and a polypropylene (PP), optionally modified with maleic anhydride; and - from 2% to 50% by weight of at least one elastomer compound (EL) chosen from a copolymer of ethylene and propylene (EL1) and a styrene block copolymer (EL2) comprising at least one elastomer block; on the basis of the total weight of said composition. - from 40% to 70% by weight of a composition (a1) of styrene block copolymers comprising at least one elastomer block, said composition (a1) consisting, on the basis of its total weight: - of 30% to 90% by weight of at least one diblock copolymer chosen from the group comprising SI, SBI, SIB, SB, SEB and SEP, and - of 10% to 70% by weight of at least one triblock copolymer chosen from the group comprising SIS, SIBS, SBS, SEBS and SEPS; the total content of styrene units of said composition (a1) ranging from 10% to 40% by weight on the basis of the total weight of a1; and - from 30% to 60% by weight of one or more tackifying resins (a2); said multilayer film being further characterized in that the adhesive layer A is: - connected to the layer D by means of a tie layer B, and - connected to the layer E by means of a tie layer C; - of 30% to 90% by weight of at least one diblock copolymer chosen from the group comprising SI, SBI, SIB, SB, SEB and SEP, and - of 10% to 70% by weight of at least one triblock copolymer chosen from the group comprising SIS, SIBS, SBS, SEBS and SEPS; the total content of styrene units of said composition (a1) ranging from 10% to 40% by weight on the basis of the total weight of a1; and - from 30% to 60% by weight of one or more tackifying resins (a2); said multilayer film being further characterized in that the adhesive layer A is: - connected to the layer D by means of a tie layer B, and - connected to the layer E by means of a tie layer C; - connected to the layer D by means of a tie layer B, and - connected to the layer E by means of a tie layer C; - from 50% to 98% by weight of a polyolefin (P) chosen from a polyethylene (PE) and a polypropylene (PP), optionally modified with maleic anhydride; and - from 2% to 50% by weight of at least one elastomer compound (EL) chosen from a copolymer of ethylene and propylene (EL1) and a styrene block copolymer (EL2) comprising at least one elastomer block; on the basis of the total weight of said composition. <EOS>