They could have done a really good war film about the Enterprise freeing an occupied Vulcan, a world populated by people known to non-fans. Even better, they could have gotten Nimoy involved as Old Spock would have been of help. Worf and maybe another DS9 cast member (O'Brien?) could have been dispatched on Defiant to help. There - you've got TOS, TNG and DS9 represented in one film without too much trouble. Missed opportunity.