Denzel Washington: 'Carbon Copy' (1981)
Denzel Washington is now known for playing more dramatic and action-based roles ("Man on Fire," "Philadelphia") so his first credited role in a feature film seems out of his repertoire
"Carbon Copy" is a comedy about a white business executive who discovers he has a black teenage son (Washington, who was 27 at the time). The trailer sets it up to be a hilarious time, and it's refreshing to see Washington in a less intense role.