A multilayer laminated film whose use is particularly suitable for the packaging of food which must undergo a high-temperature thermal treatment after packaging has occurred at least partly, the film comprising at least two layers, of which at least one first layer is made of plastic material and is intended for heat-sealing and at least one second outer layer is made of a material selected among plastic material, metallic material, paper-like material or equivalents; each layer is coupled to the adjacent one by means of an interlayer made of adhesive material. The first heat-sealing layer is of the type with a low-density cavitated structure.