Provided are a laminate film having high transparency and flexibility, and also having excellent mechanical strength, and a packaging material film including the laminate film. The laminated film of the present invention is a laminated film comprising a laminate comprising a first layer and a second layer disposed on one side or both sides of the first layer, wherein the first layer is a layer containing a polylactic acid resin having a D-isomer content of 0.1 mass perent or more and 5 mass perent or less, the second layer is a polylactic acid resin layer containing a D-isomer content of 0.1 mass perent or more and less than 12 mass perent, The laminate has a glass transition temperature of 32.5H6H4Degree Scientific, and the laminate has a D-form content of 0.1 mass perent or more and 5.5 mass perent or less. None

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