Comment by josefx

Do you know how many stories cannot be published because people sit on the IP? There are unpublished "movies" that only exist to maintain exclusive licensing deals that outright prohibit studios from sitting on the IP, letting the original authors work rot until it is forgotten.

Or we can talk about the mess you get with too many groups involved? Do you know who has the rights to Westwoods Dune? Westwood itself had a limited time license for games based on the movie Dune, which also had a license based on the Dune books. So you would have to deal with three license owners to make a Game involving the Ordos faction. Have fun convincing EA, whoever owns the movie rights and the original authors family that you can make a new game worth their signature on a new licensing agreement (you could probably manage if you have a small country to sell).