Though Helms didn’t give up a healthy tooth for his role, removing a permanent implant still isn’t an easy task. No one can argue that Helms didn’t go all-in for the part of Stu.

The Hangover was wildly successful and remains one of the most popular comedies in film history. According to IMDb, the film grossed more than $469 million worldwide. It remains “certified fresh” on Rotten Tomatoes, with a critic rating of 79% and an audience rating of 84%. 

The film helped launch Zach Galifianakis’ acting career. As One Room With a View points out, Galifianakis was 40 years old at the time and had never had a leading role in a movie. His portrayal of Alan is unmatched. He gave depth to a silly character, perfectly uncovering the vulnerability that lies underneath the seemingly carefree weirdo you see on the outside. 

The smashing success of the original movie led to two sequels — The Hangover Part II (2011) and The Hangover Part III (2013). Although fans flocked to the theaters to see more of the lovable trio from the first adventure, neither of the follow-ups earned good ratings. Rotten Tomatoes lists Part II at 34% and Part III at an embarrassing 20%. 

RELATED: ‘The Office’: Why Ed Helms’ Film Schedule Caused Some ‘Arguments’ On the Set