 Using the shotgun in the rose box was an original idea in both this  film and _Terminator 2: Judgment Day (1991)_ (qv). It is a  coincidence that they both came up with it at the same time. Its  appearance in this film is not a reference to or a copy of  "Terminator 2". It was used in two influential earlier films:  _Dog Day Afternoon (1975)_ (qv) when Al Pacino (qv)s character  brings a rifle into the bank, and before that in  Stanley Kubrick (qv)s film noir classic  _Killing, The (1956)_ (qv), when the gang smuggles their heist gun  into the track locker room hidden in a box of roses.