Speaking of chemistry, it would be impossible for us not to include this gravity-defying feat of rain-soaked romance. We wonder if they ever tried to reenact this at home? If they did, then they'd never tell. The couple kept their courtship so under wraps that even "Spider-Man" director Sam Raimi didn't know. "I'm so dumb because I met with them for dinner one night during the shooting," Raimi later recalled. "And then I ask Kirsten, 'Can I drive you home?' And they look at each other and she goes, 'No, no, I'm going to play a game of Touch 10 with Tobey.'"