Broadway Danny Rose(1984)

A hapless talent manager named Danny Rose, by helping a client, gets dragged into a love triangle involving the mob. His story is told in flashback, an anecdote shared amongst a group of comedians over lunch at New York's Carnegie Deli. Rose's one-man talent agency represents countless incompetent entertainers, including a one-legged tap dancer, and one slightly talented one: washed-up lounge singer Lou Canova, whose career is on the rebound.