A reflective polarizing film that comprises a uniaxially stretched multilayered film as a laminate of at least 251 alternately laminated first layers and second layers, wherein: 1) the first layers of the uniaxially stretched multilayered film are formed of a polyester containing dicarboxylic acid components and a diol component, (i) the dicarboxylic acid components containing 5 mol% to 50 mol% of a component represented by the following formula, and 50 mol% to 95 mol% of a component represented by the following formula, (wherein R A represents an alkylene group of 2 to 4 carbon atoms), (wherein R B represents a naphthalenediyl group), (ii) the diol component containing 90 mol% to 100 mol% of a component represented by the following formula, (wherein R C represents an alkylene group of 2 to 4 carbon atoms), 2) the second layers of the uniaxially stretched multilayered film are formed of an optically isotropic polyester having an average refractive index of 1.50 to 1.60, 3) the refractive index difference between the first layers and the second layers is 0.10 to 0.45 in a uniaxial stretch direction (X direction) within a film plane, and is 0.05 or less in a direction (Y direction) orthogonal to the uniaxial stretch direction, and in a film thickness direction (Z direction), and 4) the reflective polarizing film has an angle of tilt of the in-plane principal orientations axis with respect to the width direction of the film of 2 degrees or less. 1) the first layers of the uniaxially stretched multilayered film are formed of a polyester containing dicarboxylic acid components and a diol component, (i) the dicarboxylic acid components containing 5 mol% to 50 mol% of a component represented by the following formula, and 50 mol% to 95 mol% of a component represented by the following formula, (wherein R A represents an alkylene group of 2 to 4 carbon atoms), (wherein R B represents a naphthalenediyl group), (ii) the diol component containing 90 mol% to 100 mol% of a component represented by the following formula, (wherein R C represents an alkylene group of 2 to 4 carbon atoms), (i) the dicarboxylic acid components containing 5 mol% to 50 mol% of a component represented by the following formula, and 50 mol% to 95 mol% of a component represented by the following formula, (wherein R A represents an alkylene group of 2 to 4 carbon atoms), (wherein R B represents a naphthalenediyl group), (ii) the diol component containing 90 mol% to 100 mol% of a component represented by the following formula, (wherein R C represents an alkylene group of 2 to 4 carbon atoms), 2) the second layers of the uniaxially stretched multilayered film are formed of an optically isotropic polyester having an average refractive index of 1.50 to 1.60, 3) the refractive index difference between the first layers and the second layers is 0.10 to 0.45 in a uniaxial stretch direction (X direction) within a film plane, and is 0.05 or less in a direction (Y direction) orthogonal to the uniaxial stretch direction, and in a film thickness direction (Z direction), and 4) the reflective polarizing film has an angle of tilt of the in-plane principal orientations axis with respect to the width direction of the film of 2 degrees or less.