Movies in the 2010s featured some memorable and often crushing plot twists, but you'd be surprised where you can find the saddest of them all. This was a decade that saw the different timelines revealed in Your Name, Hannah being Cal's daughter in Crazy, Stupid, Love, and the "Cool Girl" monologue from Gone Girl. While those are more shocking than sad, you'd expect the most tragic of twists to come from heavy dramas. However, the film with the most devastating plot twist is one of the goofiest comedies of the decade, which is part of why it ultimately works so...