A multilayer film comprising: (a) a first outer layer comprising a polymer composition comprising a first through a fourth stage polymer composite wherein the first elastomeric, relatively soft first-stage polymer is polymerized from an aqueous emulsified monomer system containing from 75-99.8 weight percent of at least one C 1 to C 8 alkyl acrylate and 0.1-5 weight percent of at least one crosslinking polyethylenically unsaturated monomer, the balance to total 100 weight percent of first-stage monomer system comprising one or more copolymerizable monoethylenically unsaturated monomers, and the monomer system being chosen so that the maximum glass transition temperature is not over -20°C; the second-stage polymer is polymerized, in the presence of the resultant aqueous system from the first-stage polymerization, from an aqueous emulsified monomer system containing 10-90 weight percent of at least one C 1 to C 8 alkyl acrylate, and 9-89.9 weight percent of at least one C 1 to C 4 alkyl methacrylate; wherein the third-stage polymer is polymerized, in the presence of the resultant aqueous system from the second-stage polymerization from an aqueous emulsified monomer system containing 5-40 weight percent of at least one C 1 to C 8 alkyl acrylate and 95-60 weight percent of at least one C 1 to C 4 alkyl methacrylate; and the fourth-stage polymer is polymerized, in the presence of the resultant aqueous system from the third-stage polymerization, from an aqueous emulsified monomer system containing 80-100% weight percent of at least one C 1 to C 4 alkyl methacrylate and the balance, to total 100 weight percent of the fourth-stage monomer system, of at least one C 1 to C 8 alkyl acrylate; the weight of the first-stage monomer system being 10-75% of the total weight of the polymer composition and the weight of the subsequent stages being 90-25% of the total weight of the polymeric composition, wherein into each of the first- and second-stage monomer systems from 0.1 to 1 weight percent of at least one graftlinking monomer is incorporated wherein the graftlinking monomer is a copolymerizable monomer containing at least two addition polymerizable unsaturated functional groups, each of which polymerize at substantially different rates with respect to each other; (b) a core layer selected from a thermoplastic polyurethane or polyvinyl butyral; and (c) a second outer layer comprising a polymer composition comprising a first through a fourth stage polymer composite as defined in part (a) above, said multilayer film being obtainable by a blown film method where the layers are co-extruded in tubular form. (a) a first outer layer comprising a polymer composition comprising a first through a fourth stage polymer composite wherein the first elastomeric, relatively soft first-stage polymer is polymerized from an aqueous emulsified monomer system containing from 75-99.8 weight percent of at least one C 1 to C 8 alkyl acrylate and 0.1-5 weight percent of at least one crosslinking polyethylenically unsaturated monomer, the balance to total 100 weight percent of first-stage monomer system comprising one or more copolymerizable monoethylenically unsaturated monomers, and the monomer system being chosen so that the maximum glass transition temperature is not over -20°C; the second-stage polymer is polymerized, in the presence of the resultant aqueous system from the first-stage polymerization, from an aqueous emulsified monomer system containing 10-90 weight percent of at least one C 1 to C 8 alkyl acrylate, and 9-89.9 weight percent of at least one C 1 to C 4 alkyl methacrylate; wherein the third-stage polymer is polymerized, in the presence of the resultant aqueous system from the second-stage polymerization from an aqueous emulsified monomer system containing 5-40 weight percent of at least one C 1 to C 8 alkyl acrylate and 95-60 weight percent of at least one C 1 to C 4 alkyl methacrylate; and the fourth-stage polymer is polymerized, in the presence of the resultant aqueous system from the third-stage polymerization, from an aqueous emulsified monomer system containing 80-100% weight percent of at least one C 1 to C 4 alkyl methacrylate and the balance, to total 100 weight percent of the fourth-stage monomer system, of at least one C 1 to C 8 alkyl acrylate; the weight of the first-stage monomer system being 10-75% of the total weight of the polymer composition and the weight of the subsequent stages being 90-25% of the total weight of the polymeric composition, wherein into each of the first- and second-stage monomer systems from 0.1 to 1 weight percent of at least one graftlinking monomer is incorporated wherein the graftlinking monomer is a copolymerizable monomer containing at least two addition polymerizable unsaturated functional groups, each of which polymerize at substantially different rates with respect to each other; (b) a core layer selected from a thermoplastic polyurethane or polyvinyl butyral; and (c) a second outer layer comprising a polymer composition comprising a first through a fourth stage polymer composite as defined in part (a) above,