The following guns can be seen in the movie Superman Returns
M61 Vulcan
The M61 Vulcan is seen used by a bank robber. The M61 Vulcan is heavily modified to allow the bank robber to be transportable.
The bank robber fires his M61 Vulcan at the police, injuring the police sniper.
A better shot of the bank robber fires his M61 Vulcan at the police.
The bank robber fires his m61 Vulcan at superman. Each time, bullets bounce off his chest..
Barrett M82
When the police arrive, a police sniper comes out and aims his Barrett M82 at the building until he get's fired apon.
Barrett M82A1 sniper rifle .50 BMG
A police sniper aims his Barrett M82.
The same police sniper aims his Barrett M82.
The police sniper takes cover behind the police car with a Barrett M82 in his hands.
M1911
After realizing that the minigun is useless and ran out of ammo, the bank robber goes to superman, draws an M1911 and shoots superman's eye, but like his minigun, it's useless and has no effect on superman.
Original Colt M1911 (dated 1913) - .45 ACP
The bank robber aims his M1911 before firing in which the bullet bounces off his eye.
The bank robber draws his M1911.
Smith & Wesson Model 15
Two security guards pull out a Smith & Wesson Model 15 and fires it at the bank robber, but it has no effect as he is wearing a bullet proof suit.
Smith & Wesson Model 15 .38 Special
The security guards fire their Smith & Wesson Model 15.
The security guards realized how their Smith & Wesson Model 15 is useless against the bank robber.
Glock 17
Police officers at the robbery are armed with Glock 17.
A Generation 3 Glock 17 9x19mm. Note the finger grooves, thumb reliefs, and accessory rail on the frame, which differentiate it from the older model.
A police officer aims his Glock 17.
Another cop with a Glock 17 before he runs away.
Cannon
A cannon is seen used by Lex Luthor on his ship when he uses it to fire a modified kryptonite which grows and sprouts into landmass.
Luthor's cannon is behing him.This cannon appears to be fictional and it's unknown if it's a real cannon or based on. It could be based on the cannon used in the remake of King Kong