DOUBLE INDEMNITY (1944)

Phyllis Dietrichson (Barbara Stanwyck), at their first meeting: "There's a speed limit in this state, Mr. Neff. Forty-five miles an hour."
Walter Neff (Fred MacMurray): "How fast was I going, officer?"
Stanwyck: "I'd say around 90."
Neff: "Suppose you get down off your motorcycle and give me a ticket."
Phyllis: "Suppose I let you off with a warning this time"
Neff: "Suppose it doesn't take."
Phyllis: "Suppose I have to whack you over the knuckles."
Neff: "Suppose I bust out crying and put my head on your shoulder."
Phyllis: "Suppose you try putting it on my husband's shoulder."
Neff: "That tears it."