how many parts did it have?
Three
The Hangover
Principal photography of "The Hangover Part II" began in October 2010, with Bradley Cooper, Ed Helms, Justin Bartha, and Zach Galifianakis returning, in addition to Ken Jeong who appears in a much larger role. The film was released on May 26, 2011.

Filming of "The Hangover Part III" began in September 2012, and was released on May 23, 2013.
tower heist how did the car get in the pool UNANSWERABLE what is tower heist? It is an American heist comedy film who acts in it? Judd Hirsch,  Stephen Henderson,  Nina Arianda, Marcia Jean Kurtz, James Colby , etc. when was it released? October 24, 2011 who are the characters? Mr. Simon,  Lester,  Miss Iovenko,  Rose,  FBI Director Mazin, Special Agent Huggins , etc. who is the director? Brett Ratner which other movie has he directed? "Rush Hour" film series, "The Family Man", "Red Dragon", are some of them who composed the music? "The Hangover"s Christophe Beck is this also a movie? Yes, the Hangover is an American comedy film
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The Hangover [SEP] Sequels
Principal photography of "The Hangover Part II" began in October 2010, with Bradley Cooper, Ed Helms, Justin Bartha, and Zach Galifianakis returning, in addition to Ken Jeong who appears in a much larger role. The film was released on May 26, 2011. Filming of "The Hangover Part III" began in September 2012, and was released on May 23, 2013.