Bradley Cooper's troublesome Hangover 2
Bradley Cooper found 'The Hangover 2' a "logistical" problem.
The actor - who portrays Phil Wenneck for the second time in the comedy movie directed by Todd Phillips - thinks it was one of his toughest films to shoot as it takes place in Thailand which is considerably further away from home than the first movie, which is set in Las Vegas.
He said: "Logistically this one was difficult. You're halfway round the world. There's something about the energy of the set. There are tons of people all on set all at the same time, a ton of people working, a tense environment.
"It's humid, people are getting sick the tuk-tuk doesn't have the right wheel and you have to wait two hours for that, you're losing the sun. It got crazy, it really did, and there was no refuge."
Despite the hard work, the 36-year-old hunk does not think he needs to take a break to get away from it all.
He added to The Scotsman newspaper: "You know, I just don't ever think like that, 'Oh, I need to take a vacation.' I don't feel like I need a break. It's all together. It's just sort of all one thing which is my life.
"I love doing what I do. I love spending time with friends. I've made, and stayed in touch with, a lot of friends I've worked with."