When The Hangover took the box office by surprise way back in 2009 (was it really only 4 years ago?) most people were suitably impressed. It wasn’t particularly original, nor did it have uniquely memorable jokes, but it was fine enough in a period devoid of any other notable comedies. It gave us Zach Galifanakis, who we were all certain would go on and wow to world with his revolutionary brand of comedy. It gave us Bradley Cooper, now an Academy Award-nominated actor. It gave us hope that comedy film-making in general would learn that true comedy comes from reining the more colourful actors in and focusing on the straight man.