We think Heather Graham looks smoking hot at the London premiere of "The Hangover" yesterday. What do you think of her tight blue dress? See more photos after the jump...

Image © Solarpix / PR Photos

In "The Hangover," a blowout Las Vegas bachelor party turns into a race against time when three hung-over groomsmen awaken after a night of drunken debauchery to find that the groom has gone missing, and attempt to get him to the alter before his wedding day. Heather plays a stripper in the film.

Image © Solarpix / PR Photos

Graham had her breakthrough role in 1997's Boogie Nights as Rollergirl, an underdressed, oversexed, coke-snorting young porn actress.

Click the pics for Heather Graham's gallery:

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