The Godfather (1972)
Director - Francis Ford Coppala
Corleone family capo Peter Clemenza (Richard Castellano) orders his henchman Rocco Lampone (Tom Rosqui) to carry out a hit on Paulie Gatto (John Martino) for his betrayal of Don Vito Corleone (Marlon Brando).
Castellano's original line was "Leave the gun" but drawing from an earlier scene where Clemenza's wife reminds him to bring home some cannoli, he improvised the now famous line"Take the cannoli."