Hayden Christensen & Natalie Portman

They're both nice to look at (Hayden's h-o-t-t and Natalie's our style idol!), but together these Star Wars actors had zero chemistry! They were rumored to have dated off-screen for a sec, but apparently there wasn't enough romance to hold 'em together in real-life, either. This pair is definitely best left in The Dark Side.

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