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Over the weekend, Javier Bardem threw a party for “Black Swan” director Darren Aronofsky. During the shindig, two stars seemed to spend a lot of time together. People started whispering when Scarlett Johansson and Sean Penn not only talked extensively, but supposedly left together. Interesting, since some people say these two are dating and have been for a few weeks now. But of course, both parties’ reps shot down this story. Sean’s say he left solo to meet friends elsewhere. ScoJo’s rep said, “She went home after the party and they did not leave at the same time.” [NY Post]

Nothing gets tongues wagging like seeing two stars leave a party together. After the jump, see which party exiting pairs later became couples and which rumors were (maybe) totally manufactured.