One of the influences/inspirations when coming up with my movie idea was a film he starred in titled "Rebel Without A Cause". It is one of the earliest examples of a modern "teen" film ala "The Breakfast Club" and "American Pie" however it takes itself much more seriously. Filmed in 1955 it clearly represents the time period it was made in but it is also very much before its time. The time
period as well as the realistic approach to its younger characters helped when constructing the characterisation of Tony and how he reacts to authority figures. (His manager, Sid in this case)
James Dean's character Jim is very troubled emotionally but he hides it behind a cool, relaxed demeanor. I thought it was interesting when watching how many sides their were to his character. I thought this aspect of his personality would be perfect to morph into part of Tony's persona.
You can watch a trailer for "Rebel Without A Cause" below...