The Big Night - Joseph Losey

George La Main, just turned 17, suffers growing pains and is anxious to prove his manhood. That night, George's adored father Andy is savagely beaten by sportswriter Al Judge. Traumatized and unable to learn why it happened, George goes gunning for Judge. His mission becomes an odyssey through the town's seamy side, and his coming of age is more of a trial by fire than he bargained for.