Born in Fresno, California, but moved around several times as a kid, living in Arizona, New Mexico and Texas. Poulson went Tascosa High School in Amarillo, Texas and to the University of Texas at Austin, where he received degrees in Radio-Television-Film and English. After graduating, Keith was hired on by the Austin Film Society, a non-profit founded by Richard Linklater.

• Queen of Earth (2015)

  
• Listen Up Philip (2014)

  
• Little Sister (2016)

  
• The Color Wheel (2011)

  
• Harmony and Me (2010)