'Hangover' star eager to make third instalment

Bradley Cooper would do a third 'The Hangover' film "in a heartbeat".

The 36-year-old actor thinks the comedy film series – which follow a group of pals as they retrace the events of the previous drunken evening – needs to be a trilogy, and he would be open to any scenario director Todd Phillips, who helmed the first two movies, would want to do.