

For example, Chinese AK clones commonly stand in for the real thing in American movies made during the Cold War. One reason this can happen (especially for things more expensive than guns) is that the "right" weapon may not be available, and an incorrect version easier to come by than it would be to make a replica. Which is strange, as it's generally a lot easier to get a few MP-40's than to arrange for a Tiger tank to show up in your production. Needless to say, it isn't restricted to guns, but they are always the first and most notable victim.
