How 'Once Upon a Time' Prepared Ginnifer Goodwin for the New 'Tinker Bell' Movie

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Ginnifer Goodwin loves her fairytales!

The Once Upon a Time star sat down with superfan Lauren Kaplan to talk about how her portrayal of Mary Margaret/Snow White in the hit ABC series helped her prepare for her newest undertaking as the voice of a fairy named Fawn in Disney's Tinker Bell and the Legend of the Neverbeast.

“I do think that there's something about being on a show that's so whimsical and full of so much optimism and hope and faith and has very different rules of its own universe that helped me free myself enough to play Fawn,” Goodwin told ET. “I tend to play very optimistic characters which is why I think I find these characters and they find me.”

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Goodwin's character Fawn is an animal fairy who’s not afraid to break the rules to help an animal in need. An animal lover herself, Goodwin sees the importance behind the message of her movie.

“I think there has to be a balance,” said Goodwin. “I would want my son right now to follow his heart but balance it with logic and realism and a bit of cynicism that I don't have.”

Check out this video for more from the interview with Goodwin.

Disney’s Tinker Bell and the Legend of the Neverbeast is out on Blu-Ray and DVD now.