The third Stargate SG-1 movie would have finally revealed the top-secret Stargate program to the world, Stargate executive producer Joseph Mallozzi revealed on his blog this week.

“This subject (the revelation and its many implications) would have formed the plot for the planned SG-1 movie, Stargate: Revolution,” Mallozzi said.

Written with the working title Stargate: Revolution, the movie was to heavily feature Richard Dean Anderson’s character Jack O’Neill.

The script was written by Brad Wright and Carl Binder, and of the possible Stargate projects bandied about over the past three years it came the closest to seeing the light of day. Wright was very confident in an April 2009 interview with GateWorld that they would be filming in the fall, and also said as much during his stage appearance at the official Stargate convention in Vancouver that month.

“I had a story idea that really worked with O’Neill,” Wright said. “And it’s not just his character, by any means. It’s a Stargate story that brings O’Neill back in a big way.”

Anderson confirmed on his Web site sooner thereafter that MGM had indicated its plans to go ahead with the movie. But when the DVD market continued to soften and the studio fell further into debt, plans were again put on hold.

Wright had previously told GateWorld that revealing the Stargate to the general public would be a major event in the fictional world and for the franchise — certainly a “revolution” — and was big enough that he wanted to reserve it for a movie. It was an idea that the writers enjoyed toying with in the television series, including the alternate-timeline episode “2010.” In that episode, Earth’s Stargate was kept in a public “space terminal” and available to the public for travel to other, allied worlds.

Mallozzi said that, even after those shows’ sets were taken down and key pieces auctioned off, he still held out hope that Revolution and the Atlantis movie (titled Stargate: Extinction) might still be made. (Wright announced last month that both were effectively shelved for good.)

“I still held out hope for both movies because, in the case of Stargate: Revolution, the lionshare of the action would have been off-world and ship-based while, in the case of Stargate: Extinction, although there was some action on Atlantis itself (eminently achievable through the magic of VFX), much of the story takes place on Earth and off-world,” he explained.

Mallozzi will give his blog readers new insights into the story of Extinction (which he co-wrote with Paul Mullie) next week.

MGM owns the completed scripts for both movies. At this point, there is no indication from the studio as to whether fans might eventually see these stories in the form of a novel, comic book, or in another medium. Keep your browser locked on GateWorld for the latest!