Agreed, and the opening crawls were in past tense as well.
Er ... Star Wars transitions from past to present tense. Here's the last paragraph:
Pursued by the Empire's
sinister agents, PrincessLeia races home aboard herstarship, custodian of thestolen plans that can saveher people and restorefreedom to the galaxy....
The first part of that sentence is a subordinate clause, iirc, meaning that it can have a different tense from the main clause. It is explaining or qualifying further when the action of the main clause is taking place. I'm no grammarian, but I also think these sentences go beyond mere past or present tense...