Bradley Cooper has confirmed "The Hangover" cast is set to reunite for a second sequel set in Los Angeles.
 
The actor shot to international fame with his role in the 2009 Las Vegas-based comedy opposite Ed Helms, Zach Galifianakis and Justin Bartha, and a follow-up, The Hangover Part II, set in Thailand, was released earlier this year.
 
Cooper has now revealed filming on the third installment should begin next September and he believes the film will be set in California.
 
He tells TV host Graham Norton, "I hope we'll start shooting next September. I know (director) Todd Phillips is working on the script. We stuck to the formula in the second one but the third would need to close the trilogy. I think it'll take place in L.A. and not adhere to the structure."