We have 2 questions tagged stargate-movie. Both are ALSO tagged stargate.
It seems that there's very little point to have a specific tag for a movie - of those 2 questions, only 1 was actually about a movie (the second one was based on the whole franchise, not movie-specific), and having that movie tag fully separate makes no sense IMHO - it is correct theoretically but in practice serves no useful purpose and is merely adding noise.
I proposed to change stargate-movie to be a synonym of stargate
If you agree, and have >=5 upvotes in stargate, please feel free to up-vote the synonym suggestion here: https://scifi.stackexchange.com/tags/stargate/synonyms
If approved, I will take care of minor re-tagging if it will be necessary.