Sebastian moved with his family to Atlanta, Georgia from a small township in England at the age of 10. After the culture shock eventually wore off, he developed a love for the Southern capital, and eventually returned there to film his graduate thesis MAGELLAN.

After high school he went on to study Journalism and Film Studies at Stanford University, before moving to Los Angeles to work as assistant to legendary producer Roger Corman. Subsequently, he spent a season as director's assistant on the CBS hit-show "CSI: Crime Scene Investigation," before finally settling down in the USC graduate film program for directing.

Sebastian is a 2-time Coca-Cola Refreshing Filmmaker Finalist, and has most recently worked as a freelance writer for Current TV.