I was recently watching Hangover 1,2,3. I enjoyed watching it but I wished there was a part 4 to the series. The Hangover movie stars Bradley Cooper, Ed Helms, Zach Galifianakis,Justin Bartha,and Ken Jeong. The movie series has grossed over $1.42 billion. I personally think that this movie is one of the best rated-r movie of all time. And that is why I think there should be a part 4 to the movie.