The problem that the present invention is intended to resolve is to provide a film primarily comprising a biodegradable resin, the film having exceptional water resistance and degradability. The present invention is a film containing a thermoplastic resin (A) and comprising a filler (B) in an amount of 1-70% by mass relative to 100% by mass of all components constituting the film. The film has a porosity of 80% or less, a tear propagation strength of 200 mN or less in any direction, and a tensile strength of less than 15 MPa in any direction.