You know what’s great about actors? Sometimes they make a really good film. Then again, sometimes they make a really bad film. And sometimes, just sometimes, the same actor does both within a remarkably short space of time. Join us as we count down the ten actors who’ve flipped the classic/flop switch with incredible speed.

World’s Greatest Dad is a comedy about masturbation, suicide and the cult of personality – classic laugh-a-minute territory, I’m sure you’d agree. But wait! From this apparently gloomy subject matter emerges a brutally funny and twisted film which features Robin Williams giving his best performance in many years. By turns touching, disgusting, hilarious and insightful, this is not a film you want to miss.