Joe's garage Trek, made on a $300 budget with a cellphone camera is also in breach. But CBS/Paramount (which may yet issue a C & D even to them) does not go after them because (a) they're small and are more likely to fly under the radar (even the most diligent of copyright holders will miss something - and tiny things are a lot easier to miss); (b ) with a shoestring like that, it's hard to claim it's anything but a fan film; and (c ) there is no pocket, except for stuff like mythological Joe's car, his house, and his retirement fund or boat or his grandmother's antique brooch if he's got either.
Hold on a minute - it's pretty clear that my film 'love instructor' best represents the vision of the great bird of the galaxy and the only hold-up is finding a three breasted woman to star in it. I rang CBS to clear it past them and after a bit of a silence they said I could do what I liked as long as I stopped ringing them.