Sebastian has worked as an Art Director on films including: Gangster No. 1, The Bourne Supremacy, The Bourne Ultimatum, Flightplan, and V For Vendetta.

He was also the senior and Supervising Art Director on: Speed Racer, Inglourious Basterds, and Ninja Assassin.

As a Production Designer, Sebastian is for known for his work on Anonymous and the recent film, A Most Wanted Man.

Upcoming projects as Production Designer for Sebastian include: Hitman: Agent 47 and Mechanic: Resurrection.