Stargate: The Ark of Truth

Stargate The Ark of Truth is a 2008 CanadianAmerican military science fiction film in the Stargate franchise, acting as a sequel to the television series Stargate SG1. It is written and directed by Robert C. Cooper, produced by Cooper, John G. Lenic, and the series creator Brad Wright, and stars its regular cast. The film is the conclusion of the Ori arc, and picks up after the SG1 series finale. However, it takes place before the Stargate Atlantis third season finale.

SG1 discovers a box that they believe contains the Ark of Truth while digging on Dakara, but before they can open it, Ori soldiers arrive, led by Tomin. Daniel tricks them into opening the box, but it is revealed to be a fake. When Tomin is ordered by a Prior to kill them, he refuses, and Mitchell kills the Prior, whose powers were being blocked by the AntiPrior device. Shocked at the death of their Prior, the Ori soldiers surrender with Tomin returning to Earth with SG1 where he resides at the SGC for a time.Back on Earth, General Landry and Mitchell meet James Marrick, an IOA representative sent to interrogate Tomin due to the fact that the original IOA representative, Richard Woolsey is now working for the Atlantis Expedition. 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. In the Ori galaxy, a member of the antiOri resistance tells the team that according to legend, the Ark is on Celestis, the Ori capital. When SG1 beams down to the planet, Marrick activates the Asgard computer core which alerts the Ori to the ships location. ........

Source: Wikipedia