The main problem with First Contact for me are the Borg. Why is there suddenly a Borg Queen? That completely changes the character of the whole race. Why are they suddenly space zombies? Why do they fight their way to Earth through the whole fleet, and THEN travel back in time? Couldn’t they first jump to the past somewhere in the delta quadrant and then fly safely to Earth? Also why did they travel to the first contact time and not to let’s say ancient times? Why are they trying to assimilate mankind? Didn’t they use to assimilate races to get technological advances? What can they get by assimilating a bunch of savages which barely survived a world war?

Don’t get me wrong, I absolutely LOVE the movie, but the plot makes no sense. And I don’t even start about Jean-Luc “The line must be drawn here” Picard.