Scot Armstrong is an American screenwriter, director, and producer. He is credited with writing or co-writing numerous comedy films, including Old School, The Hangover: Part II, Semi-Pro, Road Trip, and many others. He is also the writer and director of the 2015 film, Search Party. The film will be released in the US in May 2016. Also in 2016, his TV series, Dice, premiered on Showtime. Armstrong started out working at an advertising agency in Chicago in his early 20s. While working there, he took night classes at The Second City and ImprovOlympic where he studied under Del Close. He also performed (and continues to perform) with the Upright Citizens Brigade in groups/shows including Mother, Feature Feature, Asscatt, and Soundtrack. During this time, he met Todd Phillips whom he hired to direct a commercial for Miller Genuine Draft. In 2000, the two released their first feature film together, Road Trip, which Armstrong co-wrote and Phillips directed. Armstrong and Phillips would end up working on a variety of other films together including Old School (2003), Starsky & Hutch (2004), School for Scoundrels (2006), and The Hangover: Part II (2011). Outside of his partnership with Phillips, Armstrong was also responsible for uncredited rewrites of Elf and Bad Santa. In 2007, he co-wrote the Farrelly Brothers' film, The Heartbreak Kid. The following year, Semi-Pro, which was Armstrong's first solo-written film, was released. In 2011, Armstrong announced the concept for his directorial debut, Road to Nardo. The film was set to begin production in 2011.

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