By the letter of copyright, if you are reproducing ANY of the IP without permission, this means marquees, bezels, game code, whatever, you are breaking the law. Whether you make a profit or not. American IP law is one of the biggest money grabs in history, and thanks to Disney copyright now can last effectively forever. I think currently it is life of the creator + 75 years. The catch is that the "creator" can be a corporation, and a corporation is effectively an immortal entity.