FAA can't assume that a given image based on a famous movie scene isn't licensed. Some instances are duly licensed, believe it or not. Of course, chances are, it is not. But the law doesn't (normally) make the website responsible for the unlicensed image, but rather whoever posted it. There are some extreme exceptions, such as Napster, and one wonders if Pixels/FAA is dangerously close to these extremes, in practice. But they certainly can't afford, in practical terms, to monitor each and every image uploaded and for sale here. Nominally, Pixels/FAA is quite conscientious to sever the accounts of proven violators, but it is up to the person infringed to initiate a takedown notice, and/or a complaint to the infringer and FAA.