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“Big, big, big, big, big, big, big mistake!” Winfrey recently told Entertainment Tonight of her boo-boo. “When I look at that show, I think it was one of the biggest ego trips of my life.”

Those legs are made for walking: Longtime "Entertainment Tonight" host Mary Hart said Thursday she's leaving the show after her upcoming 30th season.

Gwyneth Paltrow and Scarlett Johansson talked to Entertainment Tonight on the set of Iron Man 2, hitting theaters on May 7, 2010. You can watch both interviews using the players below!

The teaser for Quentin Tarantino's "Inglourious Basterds" will make its debut on "Entertainment Tonight" this week -- but first, here's a teaser for the teaser, including plenty of first-look footage.