I was using dynamite throwing it around corners and while holding it, it froze in my hand. I could crouch, jump, go into third person, turn on flashlight. Start didn't work, going through doors was unavailable (I got the error sound like when you try and pick a door too high of a level). I had to go to dashboard to get to my save game again.

While walking around in first person, with iron sights enabled, sometimes the gun will move to the middle of my screen or above my head. When looking at third person the gun is in the correct spot.

I will try and get videos of these up if no one has seen them yet. I have the game installed on my HDD also if that affects it.

Ive had this problem as well. Ive also had an odd glitch with the single shotgun where the character would hold it funny and instead of shooting he would throw dynamite.