Mr. and Mrs. Smith is pretty gun pornorific, same with the Transporter series. Can't forget the Die Hard series. If you're specifically looking for movies centered around a gun, I really don't know any. Quigly was about the sharpshooter, yes he had a Sharps rifle, but the movie didn't revolve around the gun itself (without my rifle I am useless, without me, my rifle is useless). The rifle was a tool which Matthew Quigly had wonderfully mastered. Same with Enemy at the Gates. The movie portrayed the skill Vasili Zaitsev had with his rifle, not that the rifle was better than he was in any way. Although movies do seem different to gun guys than those "other" people, lol. My fiancée gets annoyed with me naming every gun in a movie. She thinks it's distracting...what's up with that?