Ever wondered why he didn't call or blanked you in class? Well, Drew, Jennifer and co have the answers...

Remember that Sex and the City episode when Miranda tries to enlighten New York's female population about why they're still waiting for their crushes to call? 

Well, her revelation sparked off a new way of thinking in the world of dating and now we have a whole film and best-selling book dedicated to the rejection theory!

The film tells the story of a group of inter-connected twenty and thirty-somethings in Baltimore trying to make sense of dating and relationships, and hoping that they will be the one exception to the rule - he's just not that into you!

Last night's star-studded premiere has got us even more excited to see the film...we can't imagine anyone not being into these super hot actresses!

Drew Barrymore looked amazing in this black dress with mink-coloured silk bow.

Watch this preview trailer and count the famous face...it's a proper celebfest!

Click next to see who else was shining on the red carpet...