The Hangover is a brilliant comedy, this product contains both The Hangover (the first one) and The Hangover II (the second one), brought out in 2009 and 2011 respectively.
Hangover 1 : The film tells a story of how 4 men go to LA for a stag due, they wake up after a night out and forget everything that happened, the main plot of the story is finding out what happened the night before, and where their missing friend is, who happens to be the groom to be.
Hangover 2: Ironically follows a similar story line, they go to Thailand for one of the 4's wedding, once again they go out on a stag due, and manage to lose the bride to be's brother. They try to find her brother, despite being told that 'Bangkok has him now'.
The films are brilliantly done, and ones where you can laugh all the way through, a great movie to watch with friends and share the experience together. Zach Galifianakis plays Alan, one of the 4, who grows on them as time goes on, at first he's seen as weird, annoying and in the way. In the end, he becomes 'part of a wolfpack' as he likes to put it, so much so that he's invited on the trip over to Thailand in number 2 for the wedding. Zach's role really makes this film, Alan as a character is hilarious, and Zach plays him to perfection.
Would definitely recommend buying this as both films are great!