Alpha/Beta releases of Duke3D are canned according to TerminX from Duke4.net
3D Realms held the rights of the Duke Movie after the sale of the IP to Gearbox. Domain for DukeNukemMovie.com was updated some days ago and is now registered to Gearbox.
3D Realms walked into the lawsuit with rights to all games before Duke Forever and licence to Duke Trilogy, Mass Destruction and others and walked out with absolutely nothing.