Okay - So i've just watched Fools Gold starring Matthew McConaughey and Kate Hudson...quite a good film.

Anyway, i'm disgressing from the point in hand. In one scene, Matthew's character is chained to an anchor on the bottom of a sea bed (somewhere in the bahamas i think), with a normal gun nearby. He fires the gun to break the chains from his feet


Now the question is......Would a.)the gun still work under water and b.) would trajectory of the bullet being fired still be the same underwater???