It's a British comedy about an older director who directs an episode of some TV series. Atmosphere on the set is really hectic, the director keeps yelling at everybody all the time (except at the lead female actor to which he is kissing up). A young lad steals a hand camera and films a 'behind the scenes' documentary during the movie. The movie ends with the director having a stroke and ending in a hospital watching the same episode of the series he stressfully directed.
Please help!