What movie and television projects has Christian Patterson been in?

Christian Alexander Patterson has primarily worked behind the scenes as a movie and television producer/executive producer over the course of his career, however below is the list of acting filmography he has to his name:

Film

2017: Wonderstruck as Young Walter

Television

2011–2014: Game of Thrones as Martyn Lannister/Young Robb Stark (season 1: uncredited role)