A novel cellulose acylate film is disclosed. The film is formed of a composition comprising at least one cellulose acylate having an aromatic group-containing acyl group (Substituent A), in which a substitution degree with Substituent A satisfies following relational expressions (I) and (II): -0.25.ltoreq.SA2+DSA3-DSA6.ltoreq.0.20, (I) 0.35.ltoreq.DSA2+DSA3+DSA6, (II) wherein DSA2, DSA3 and DSA6 each indicate a substitution degree with Substituent A at the 2-, 3- and 6-positions of the cellulose acylate.