Stargate: The Ark of Truth is a 2008 American military science fiction film written and directed by Robert C. Cooper.

While digging on Dakara, SG-1 discovers a box that they believe contains the Ark of Truth, but before they can open it, Ori soldiers arrive, led by Tomin.

Shocked at the death of their Prior, the Ori soldiers surrender with Tomin returning to Earth with SG-1 where he resides at the SGC for a time.

When Daniel Jackson realizes that the Ark is still in the Ori galaxy, Marrick is assigned to accompany them on board the Odyssey through the Supergate.

When SG-1 beams down to the planet, Marrick activates the Asgard computer core which alerts the Ori to the ship's location.

Upon being alerted by Major Kevin Marks of what is going on, Mitchell and Carter beam back to the Odyssey and discover that Marrick has used the core to build a Replicator, intending to plant it on an Ori ship and let it spread to their entire fleet.

Morgan then arrives in Daniel's cell (initially in the guise of Merlin) and tells him if he can expose one Prior to the Ark, the others will be turned by a link in their staffs.

When General Landry refuses to even listen to him, the Apollo detects a fleet of Ori motherships waiting on the edge of the Solar System.

[3] The intended ending for the Tenth Season was to introduce the concept of the Ark of Truth, an artifact for which SG-1 is searching.

[3] The movie's storyline picks up after "Unending", but takes place before the fourth season of Stargate Atlantis.

[7] A pre-release (workprint) version of the film with unfinished special effects, no credits and recorded in cropped 16:9 was leaked onto the Internet in mid-December 2007.

The DVD includes an audio commentary with Robert C. Cooper, Peter Woeste and Christopher Judge, a 30-minute behind-the-scenes program, highlights from the 2007 Comic-Con Stargate panel and a nine-minute summary of the Ori storyline from seasons nine and 10.