The Hangover Part III London Premiere

The Hangover Part III were on the red carpet in Leicester Square last night for the movie's European premiere.

Zach Galifianakis, Ed Helms, Ken Jeong, Heather Graham, Justin Bartha and director Todd Phillips all joined B-Coop for the screening in the capital, as did a sizeable crowd of film fans.

Celebs guests included The Saturdays, boy band Lawson, Jessica Lowndes and Amelia Lily.

Opening in cinemas today, the comedy will definitely be the last in the series according to star Ed Helms.

He told Access Hollywood: "It would take peace in the Middle East for me to do Hangover IV."

And Bradley Cooper agreed, saying: "It's over. It's done. Yeah, it's done."