'Frozen' director apologizes to parents

Speaking of musical entertainment, the director of "Frozen" is apologizing to parents whose children just won't "let it go."

Jennifer Lee says when the film was released last year, parents would tell her how much their families loved singing "Let it go." But over a year later, Lee says she's gone from saying "thank you" to "sorry" when parents tell her they're still hearing it from their kids.

Since its release in November 2013, "Frozen" has grossed more than $400 million in the U.S.

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