Besser has appeared in films such as Walk Hard: The Dewey Cox Story, Martin & Orloff (written by Ian Roberts and Matt Walsh), Year One, Undead or Alive, Drillbit Taylor, and Junebug, in addition to a number of sitcoms like How I Met Your Mother. In 2003 the UCB filmed their first full-length improvised movie, Wild Girls Gone. After several years of being unreleased, in early 2010 the long-awaited film was screened at several indie theaters in the Los Angeles area and is now sold for digital download on iTunes and on DVD at the official UCB Theater website. The troupe had also performed their signature brand of longform improv (ASSSSCAT) in a special for the Bravo channel in 2005. In 2008, they also released a DVD entitled ASSSSCAT!: Renegade Improv Comedy through Shout! Factory, which features an uncensored improv performance by the troupe and special guests, the DVD also includes deleted scenes and along with other bonus features.