Death at a Funeral (2007)

Great watch, will likely watch again, and do recommend.
This is a great example of a movie. That may seem like a nothing statement, but more movies, especially ones that insist on multi-threaded story lines should pay attention to how this movie works structurally and mechanically. There are about 10 different story lines happening, and it is almost perfectly balanced. There are pivotal moments when the story lines come together (very similar things in "Crash", "Love, Actually", "Snatch", and "Lock, Stock, and Two Smoking Barrels"), but without having to cut all over the place or having to re-tell parts of the story from other character perspectives. The movie moves on almost seamlessly from event to event, at a rather tilted rate at one point, and is never distracted from the movie.
There are a ton of interesting characters, each with their own motivations, and the increasingly ridiculous scenarios that occur are all well established earlier on so it doesn't seem sudden or jarring.
And if nothing else, Alan Tudyk losing his mind as he deals with being drugged is amazing, and well worth the watch all on it's own.
Unless you're just crippled with anxiety about funerals, I expect that you'll enjoy this one very much.