Patent ID: 7955666

Claim:
A cellulose acylate film, in which X-ray diffraction intensity satisfies Formulae (I) to (III) below and a half-value width of the peak at 2θ 2 is 3° or less: 0.40≦ Ic/ ( Iam+Ic )≦0.85; Formula (I) Iam=I 1 +{( I 3 −I 1 )/(2θ 3 −2θ 1 )×(2θ 2 −2θ 1 )}; Formula (II) and Ic=I 2 −Iam, Formula (III) wherein when it is assumed that θ is the Bragg angle, 2θ 1 indicates 2θ at which the intensity becomes the minimum in the 2θ range of 4° to 5° , 2θ 2 indicates 2θ at which the intensity becomes the maximum in the 2θ range of 5° to 10° , 2θ 3 indicates 2θ at which the intensity becomes the minimum in the 2θ range of 14° to 16° , I 1 indicates a diffractive intensity at 2θ 1 , I 2 indicates a diffractive intensity at 2θ 2 , and I 3 indicates a diffractive intensity at 2θ 3.