I saw several episodes of "Stargate SG-1", but not to the point where you could call me a fan. Still, I really liked what I saw so I could tell it was a great show. I am sad to say that I didn't like this as much as most people did. I still liked it fine! The main problem was that a lot of it did feel like just a long episode of the show. Stop doing that! Now, it doesn't help that I didn't follow the seasons or anything. I would have understood a lot more to see the plot threads resolved. Then again, I watched the "Star Trek" movies with no problems like that.This was still fun and it really gets good in the last third. What's great is that we have very good practical effects and unique character designs. I talk about character designs a lot in animated things, but you can do it in live-action works with makeup effects. This didn't seem to have too much or too little. I admit some of the effects weren't that good, but for the most part, it was enjoyable. It's mostly a nice looking film. The music in this was amazing too and I'm glad it so consistently epic! ***

An Arc of Truth may have been used on SG-1 writers. Everything lost from Stargate SG-1 in the final season and especially in the final episode was back for this movie. The sense of wonder and mystery returned. Stargate was stargate again.The opening scene gave hope this movie was going to be good. Unfortunately, that required Prior mayor's death. Take that you bastard! The Replicators returned with a new twist on a human form, or was that a Terminator? Mitchell fighting the Replicaterminator was epic.If you like or even love SG-1, don't miss this movie. It provides the end to the Ori story the final TV episode didn't even attempt.

I'm disappointed that some reviewers here treated this like a Feature Film instead of what it is, one of two SG-1 "Episodes" that deal with loose ends left from the series. This one focuses on The Ori Followers and has a side-trip into Replicatorville.This was not ever intended to be Feature Film Quality. As far as Production Value, it's probably the best SG-1 Episode ever made, along with "Continuum".Like a few other's I stopped watching SG-1 for seasons 9 and 10, so I missed the whole Ori storyline. I came into this without any of the background. Even so, it was not difficult for me to follow the story: And some cleverly placed flashbacks show the history of the Ori's incursion into "our" galaxy and what had transpired in seasons 9 and 10. I had no trouble understanding the main plots, but now that I have gone back and watched seasons 9 and 10, I can really enjoy this.The Fires of Celestos have gone out - Which is the City of the Gods as shown in "Avalon pt II" - The Ori are Gone, but the Followers of the Ori are not. The Ancients had actually thought up a solution, millions of years ago: The Ark of Truth. But they were loathe to use it, as it represented the same kind of coercion which The Ori Followers use. Mainly the Ark is designed to cause followers of the Ori to question their beliefs. At least that is what it is programmed to do by The Ancients. But they built in a safeguard: The Ark can only be programmed to make people believe things which are True, which would effectively prevent the Ori from taking The Ark and using it to make people believe their propaganda.Daniel Jackson sees the Ark in his dreams, as well as a mountain blowing up. Assuming the vision came from Merlin, who helped Jackson create the weapon which killed all of the Ori, SG-1 is led to the ruins of Dakara. As expected, an Ori ship shows up and out pops Vala's "Husband" Tomin (Tim Guinee), some Ori Soldiers, and the Prior who we saw get converted in "Avalon part II" and "Origin" (Greg Anderson, who deserves note for a fine job of creeping us out).We knew that Tomin was starting to question the way his Prior was using the book of Origin to rationalize atrocities done in the Ori's name, and he had already given SG-1 safe passage. But when the Prior tries to revoke that, Tomin cracks and SG-1 skirts certain death once again by the skin of their teeth.So, SG-1 returns to Command with Tomin in tow. Homeworld Command has one advanced ship with an Asgard Core: The Odyssey. Basically the idea is to sneak in to the Ori Galaxy through the Super-Stargate, find the Ark, and turn it on. Then Bring it back to "our" galaxy, and turn it on there, too.But the IOA, the agency which was set up for Homeworld Command Oversight, has a new face to replace Woolsey (Robert Picardo) who went to Atlantis: Merrick, played by Currie Graham. The IOA had created a secondary, secret plan: Which was to release Replicators into the Ori Galaxy! Needless to say, in the Middle of SG-1's mission, Merrick releases a special replicator onto the Odyssey, one which is immune to the anti-replicator weapon Jack created in Season 7. And, he activated the Asgard Core to do it which is an Instant Ori-Magnet! So... Replicators overrun Odyssey, Ori ships chasing them, Daniel, Vala, and Tomin captured, and Teal'c has a new hole blown into his back to match his frontal Symbiote Pouch, what is not to like? The production is superb, almost feature film quality. And it's one last blast for SG-1. Well, Almost one last blast, it depends on which SG-1 Movie you watch first, Continuum or Ark. I chose to watch this one first, then Continuum. Either way, it wraps up all remaining plot lines for SG-1.

I took the time to watch The Arc of Truth a while back and couldn't watch more than a little less than a half an hour of it. The acting was practically non existent.As for the plot line, it seemed interesting enough and I was beginning to get drawn into it... but once I saw the main actors interacting for the first time, I pretty much gave up on the film itself.The secondary actors did a better job than the primary ones did. Both the lines and any jokes that the main characters said fell flat. I don't know why they (the main actors) didn't even bother to show up, so to speak, acting wise, in this entry. It's a real shame, because I was really looking forward to watching this originally.Overall this movie isn't worth the watch, in my opinion.Continuum is the better movie out of the two overall.