I've never seen the movie... care to elaborate?
And I'm pretty sure you could get OBA with the A/C compressor... you could probably re-use the basic lines as well... I think it could be done with either a cheap, broken air compressor... just remove the motor and compressor and run the lines to the A/C... or, get a compressor tank of whatever size you want, a blow-off valve/pressure regulator, an air-pressure gauge, and some air hose... Once the refrigerant has been evacuated from the A/C system I suppose it could be done for under $50... maybe $100 if you want to have a nice setup...
The only thing I'm unsure of is whether or not the compressor requires pressurized refrigerant in order to be able to engage the clutch... if so, then there would have to be constant pressure in the system in order for it to work... anyone have any input on that?