When I entered Wasteland I could not move. It was the same at the party at Turlip.

Soon after entering Wasteland, I was ordered to reload my flashlight and after that my camera. I could not put either of them in my hand.

Solution for "unable to move": press ESC to get the game's menu (it did not work).
Press ESC again and you can move.

Maybe this bug is already fixed. I could not check that out without playing part 3 again.