Boyhood's Shane Graham will portray Buultjens, while the Furious 7 star and Sasha Alexander will play the BMX rider's foster parents.

BMX will be directed Alex Ranarivelo and will centre on Buultjens' childhood in Scotland and his bond with his foster father, who bought him his first bike and helped him overcome emotional issues in his life.

Ali Afshar, Bryan Craig, George Kosturos and Jessica Michelle will also star in the movie.