Welp, since you brought Star Trek into the mix, we might as well feature this movie.
I haven't watched it yet, but it was supposed to be bigger than Star Wars.
Of course it wasn't.
Supposedly the studios took a million dollars out of the Star Wars Budget for this film.
YouTube has 4 or 5 uploads if this one isn't working.
George Peppard and Jan Michael Vincent in:

Damnation Alley (1977)