It's Almost Valentine's Day -- What's Your Favorite On-Screen Kiss?

The hotly anticipated "Valentine's Day" movie opens in theaters today. Like last year's "He's Just Not That Into You," the movie is packed with stars -- from Julia Roberts to George Lopez -- but it's already receiving most bad reviews.

"Too many stars, too few laughs," said one critic in the Newark Star-Ledger. Even so, there's no shortage of on-screen kisses -- the trailer has three of them.

It got us thinking about some of our favorite romantic movies. So, our question to you on this Friday before Valentine's Day: What's Your Favorite On-Screen Kiss?