I think you guys hit it on the head with both shotguns. Did a little research myself this morning and one of them looked just like a Franchi SPAS 12 with the folding metal stock on top of the receiver.
The other was the South African Striker. I called both intimidating since the good guy only had a semi-auto handgun to use.
Hey, late at night I can't help but enjoy a good action flick, regardless of how impractical the mayhem. When the GG is the target of about 50 rds of 12 gauge and doesn't stop a pellet you know it's Hollywood but still great entertainment. The two BG's just about destroyed a shopping center with these two alley sweepers. Lottsa fun.