Jonathan Jon Lucas is an American screenwriter and film director who is best known for collaborating with Scott Moore including The Hangover and 21 & Over. Lucas made his film debut as a screenwriter with Rustin (2001) and since then has written films like Four Christmases (2008), The Hangover (2009), Flypaper (2011), The Hangover Part III (2013) and Office Christmas Party (2016). His 2017 release includes A Bad Moms Christmas.