"He, by the way, is the most wonderful person to work with," a smiley and sparkly Drew told me, while rocking a vintage dress. "I'm so excited about this movie. As a girl, I relate to this movie and the boy in me loves the comedy in this movie. It is a very good date movie!"
And that wasn't the only thing Drew had to rave about...
"I love this magazine!" she gushed. "I'm so excited to be a Nylon cover girl!"
Fellow partygoer Jenna Dewan also left her man, Channing Tatum, at home to hit the Express Denim-sponsored bash on the rooftop of the London hotel.
"I can't drag him to these things!" she said. "He never comes! I get like, three a year [that he'll go to]."
See more stars on the scene in Party Pics: Hollywood!