In one of the film’s best-known scenes Don Vito Corleone (Marlon Brando) is visited by his godson, the famous singer Johnny Fontane (Al Martino) – a characterization that is widely believed to be based on Frank Sinatra, although many people associated with Sinatra and the film have denied this. Fontane asks for Vito’s help to secure a film role that will boost his fading career. The head of the film studio, has previously refused to give Fontane the part, but Don Corleone tells Johnny:
“I’m gonna make him an offer he can’t refuse.”
The studio head later wakes to find the severed head of his expensive racehorse in his bed. Unsurprisingly, Fontane is subsequently given the part.