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PROBLEM TO BE SOLVED : To provide a film that has excellent optical compensation performance and can be laminated by using a water-soluble adhesive.
SOLUTION : The cellulose acylate film satisfies the formula |Re(630 nm)-Re(450 nm)|≥10 nm [wherein Re(λ) is an in-plane retardation value (unit; nm) measured by a light having a wavelength of λ nm].
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