Some infomation on some cuts, rather than just simply name-dropping.
Blade Runner
Most of the cuts of the film have been released in the 2007 5-Disc set, including the Workprint, Theatrical, International, Director's, and Final Cut. But there are two other known cuts that haven't been seen or released since.
The May 1982 San Diego Sneak Preview, which included 2 known differences;
- A full shot of Batty inside the closed VidPhon booth, whereas the final film starts with a close-up of his hand, as well as another wide shot when he steps out, as the final film uses a mid-shot
- An overhead helicoptor shot of Deckard driving through the woods at the start of the happy ending.
And the BR2k2: Definitive Cut, which was never finished. It was to be Ridley Scott's definitive version, and was in production in 2002. Set to be apart of a lavish DVD set, a rough cut was assembled and signed off on, but never made it to release due to legal issues with the film. The project was reignited in 2006, and eventually became the Final Cut, released in 2007.
All info taken from Future Noir: The Making of Blade Runner
The Phantom Menace
Rumours have swirled for years there is a lost 6-hour cut, but there is nothing to ever say that there ever could of been.
First cut ran at 2:06:34 and finished in February 1998, before 2 rounds of additional photography were done. After that, the film was cut a third time on March 13th, and ran 2:17:42. Finally by release in May 1999, the final runtime was 2:13:05, before the DVD added back extended scenes, with it now finally running 2:16:11.
There's never any one particular lost cut, as it was always in flux as material came in and out, as the first cut of the film was shorter than the theatrical cut. Lots of really interesting deleted scenes though. I reccomend reading through T-Bone's SW Universe for more!
All info on runtimes taken from The Star Wars Archives 1999-2005
Iron Man
Additional photography actually ended up adding one of the most iconic scenes in the film.
In the original version of the film, there was no suiting up scene. The big dramatic scene where he suits up in the Mark 3, is not in the film at all. Originally, after seeing the news report on Gulmira, he gets Pepper to organise a party in Dubai, where he slips away during the festivites and heads to fight the Ten RIngs. That whole action scene also didn't have Abu Bakaar (the 2nd in command) as he was shot dead by the leader of the Ten Rings in front of Tony earlier, to make a point. Pepper finds him in the morning in the suit, which is smoking and riddled with bullet holes, he's drinking a whiskey and asks her to get him out of it.
The brief water-boarding scene was also apart of reshoots, and instead had a scene where Yinsen hits and mocks Tony instead. Later Tony is just dragged out of bed and out of the cave.
There's also a far longer third act, where Rhodey crashes a car into Stane's suit, blowing up a bus, and a pro-longed death scene with Stane as he falls into the Arc Reactor.
All of these deleted scenes have been released on different blu-rays and TV cuts.
Most of this is all discussed in the mostly forgotten live commentary by Jon Favreau and Robert Downey Jr, on the 8th September 2008, at the Aero Theatre. There's only one recording of this, and its not great, but it's the only commentary that exists for the film.
Men In Black
There was a bit of flux with the script when it came to the antagonistic force of the film. Originally the climax had a big anamatronic talking bug, with J and K engaging in a philosophical debate with it. During shooting, this was scrapped and rewritten before the climax was shot, so it turned into a big action sequence with a CG bug.
After screening the film for test audiences, there was some confusion on the 3 conflicting alien races fighting over the galaxy. The original plot was two formally feuding species (Baltain and Arquillian) who had finally come to an agreement to trade the galaxy back, with the Edgarbug stepping in to stop the peace happening so that his species can continue to live off the devastation and destruction of the war.
Clearly this was too much for some so they re-edited the film to take out the Baltains out and simply made it that the Edgarbug species wanted control of the galaxy from the Arquillian prince. They did this by redubbing the diner scene so that the two aliens were now speaking some foreign language with new exposition, redubbing the Frank the Pug scene to support it, and adding new graphics to the MIB HQ screen and having off screen dialogue added to shift the narrative.
The workprint that's been floating around for years, has parts of this lost plot, but not all of it. Most of it turned up in a documentary on the DVD, but not 100% complete.
Info taken from said documentary Metamorphosis of 'Men in Black, available on the DVD/Blu-Ray
Anchorman: The Legend of Ron Burgandy
The film's main plot focused on a terrorist group, known as the Alarm Clock, that is vague in their goals, but still want to achieve something. The film ended with the group kidnapping Veronica and the News Team assembling to save her.
The rest of the film was all the same, with a woman joining the station, Ron falling in love, him getting firing, etc, but the main crux focused on this terrorist plot. It tested poorly so all of that plot was cut, and additional news reports, and the entire third act was reshot to make it focus on the birth of a baby panda, which alligned moreso with the tone of the film, being that the characters take news reporting too seriously.
The entire subplot was re-edited, along with more deleted scenes, as a quasi-sequel, and released on DVD with the film.
L8wrtr's Alarm Clock Cut tries to recreate what this early cut could of been, and does a really good job.
Info from commentary to Wake Up Ron Burgandy! with Will Ferrell and Aaron Zimmerman