S_Matt said:

It is extremely difficult to imagine that there are some who dislike Empire, one of the finest science fiction films ever made.

As for disputing the plausibility of Vader being Luke's father... SERIOUSLY?

I have been wondering about this. I didn't know that it was never planned by George and I don't see why it matters. And I especially don't see how people who saw it at the cinema, after loving Star Wars; a fantasy movie - can have a problem with it. Especially if they were having no problem with it up to there.

The only thing I can think of to justify that attitude would be if they had access to George's intentions ahead of time (I don't know if that was or wasn't possible with whatever material was available to the public at the time).

*edit* By intentions, I mean to NOT have Vader as Luke's father.