Hollywood's hottest stars are going head-to-head at the box office this summer! Brad Pitt and "Inglourious Basterds" vs. Johnny Depp in "Public Enemies," and Megan Fox in "Transformers" takes on Katherine Heigl's "The Ugly Truth."

Then, "Extra" has the eight things you didn't know about Jon and Kate.

Plus, Playboy Playmate bikini secrets! All this and more on Monday's "Extra"!