The Hangover

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Some friends travel to Las Vegas 2 days before the wedding of one of them, and after drinking a lot they wake up the next day and the groom is missing. While trying to find him they discover their situation is worse than they thought. It's a hilarious movie, that makes you laugh from the beginning to the end. Full of sincere jokes and situations that can actually happen, it can easily be considered the best comedy movie of the year.