A multilayer film (10) is provided with a hard coat layer (12) and a film base (11) formed from a polymer compound. A heat shrinkage factor of the film base (11) (170° C., 10 minutes) is in a range from 0.05% to 3.0%. The hard coat layer (12) is formed by applying a coating liquid (33) containing a compound represented by a general formula (1), tetraalkoxysilane, acid water with pH in a range from 2 to 6, and a water-soluble hardening agent. An amount of the acid water is in a range from 60 to 2000 pts. wt. relative to a total amount 100 pts. wt. of the compound represented by the general formula (1) and tetraalkoxysilane. In the general formula (1), “R1” is an organic group having 1 to 15 carbons and containing no amino group. “R2” is a methyl group or ethyl group, “R3” is an alkyl group having 1 to 3 carbons, and “n” is zero or 1. (1) R1R2nSi(OR3)3-n.