Basicially this is what happens: Before his execution, one of Ba'als clones go back in time and sinks the boat that carried the Stargate to USA in 1939. Time thereby is changed and the team has to fix it, but is stopped by an alternate version of they're friends/colleagues who wants too keep everything the way it is. Meanwhile Ba'al has become supreme lord of the Goa'uld and plans to conquer earth.
The movie is funny and entertaining, but like the majority of time travel films, it neither makes much sense and nothing of the story's events have actually ever happened when they "fix" everything in the end of the film. So it really is just a funny way to waste time.
I'm a big fan of Stargate SG-1, but the film was very predictable and reminded me of a "back to the future" film. But I love the characters and the acting is great, so I still give it an 7.
The movie is funny and entertaining, but like the majority of time travel films, it neither makes much sense and nothing of the story's events have actually ever happened when they "fix" everything in the end of the film. So it really is just a funny way to waste time.
I'm a big fan of Stargate SG-1, but the film was very predictable and reminded me of a "back to the future" film. But I love the characters and the acting is great, so I still give it an 7.