As long as the film is in it's original packing you're covered against moisture loss, but it is important that the film be loaded and exposed promptly after removal from the original packing. Do not leave the film in the camera for long periods of time. If it stays in the camera even for a couple of days it may dry out and break where the loop is formed when the camera is started again. When loading the camera, make sure the film and the camera are at the same temperature. In fact, always load indoors if it is possible.
Static markings can happen if moisture does get in.
This will cause the film to have markings resembling lightning, tree branches or fuzzy spots.