When your favorite celebrities come together and co-star in a movie or a television show, it is sometimes hard to believe that they aren't falling in love on set. It's hard to believe because it actually has happened to a lot of people like Brad Pitt and Angelina Jolie or Rachel Bilson and Adam Brody or Lea Michele and Cory Monteith – just to name a few.
But, a real life love story isn't always in the cards. There are plenty of times when the kissing on screen between co-stars stays on screen!
We've decided to dig up the craziest, most shocking celebrity co-star couples that had the world convinced they were secretly dating and completely in love. But, in reality, there wasn't even an ounce of chemistry between them!
Click through the gallery and let us know which celebrity co-stars YOU thought were dating too!