21 & Over (2013): Jon Lucas & Scott Moore
Casey and Miller (who are both 21) want to take their best friend, Jeff Chang, out for his 21st birthday, which just so happens to be the night before his big interview for medical school.
Lot of crazy stuff happens. There are lots of boobs, some girl-on-girl action, a lot of drugs and alcohol and other typical party movie topics.
Apparently, the writers of the Hangover only know how to write films that are extremely similar to the Hangover but not really the Hangover but really.. the Hangover.