To obtain a polyester resin composition and film each exhibiting excellent wax dispersibility and having all of contents-taking out property, the moldability and processability and the taste and flavor-retaining properties and suitably in fields in which contents-taking out properties are required, particularly for food packaging, etc.

The polyester resin composition comprises a titanium compound in an amount of 0.5-50 ppm in terms of titanium atom, a phosphorus compound in an amount of 0.1-100 ppm in terms of phosphorus atom, with the proviso that the ratio of titanium atom to phosphorus atom satisfies formula (1): 0.01≤Ti/P≤10 (wherein Ti and P are concentrations (ppm) of titanium metal element and phosphorus metal element in the polyester, respectively) and further comprises 0.1-20 wt.% wax composition.