Multilayer film, multilayer body and package

A laminated film exhibiting gas barrier properties, the laminated film comprising:

• a resin substrate;
• an inorganic thin film layer laminated on at least one side of the resin substrate;
• and
• a protective layer laminated on the inorganic thin film layer, wherein
• the following requirements (1) to (3) are satisfied:
• (1) a layer is not provided between the resin substrate and the inorganic thin film layer,
• (2) a heat shrinkage rate in an MD direction before and after retorting at 130° C. for 30 minutes is 1.2% or less, and
• (3) a water vapor transmission rate is 2.5 g/m2·day or less after a 15 μm biaxially stretched nylon film and a 70 μm unstretched polypropylene film are coated with a polyurethane-based two-component curable adhesive in a thickness of 4 μm after drying, bonded together by a dry lamination method, and laminated on a protective layer surface of the laminated film, aging is performed at a temperature of 40° C. for 4 days, and then a heat-moisture treatment is performed at 130° C. for 30 minutes.