Sebastian began working as a film producer in 2001, when he formed Five Stone Entertainment and began production on a small feature documentary, called Facing Goliath. With almost no production budget, he successfully worked together with his talented film partners, Kirk Pennell and Rodrigo Gutierrez, to see Facing Goliath hit television networks around the world.

For a number of years after this he continued to focus on acting, film festival management and other business ventures, before returning to producing in 2006. At this time, he again teamed up with Kirk Pennell to produce the TV series Body Quest, for Rogers Television.

In the fall of 2007, Sebastian and Rodrigo Gutierrez reconnected to form an official partnership, under the company banner PixaTale Media. This company now works to develop, TV series, feature films and documentary projects, while servicing a variety of businesses in the area of web-based video production.