This once boyishly handsome, stage-trained character player enjoyed a brief stint as a Hollywood leading man in the late 1970s and early 80s after the surprising success of "Breaking Away" (1979). Christopher proved extremely likable as a young Italophile cyclist in middle America coming to grips with growing up. Though he was already 24 at the time, Christopher was so convincing at conveying the anxieties of youth that he won a Youth in Film Award. This could have been a career transforming role but he faltered with his next two projects, "Fade to Black" (1980) and "Don't Cry, It's Only