I saw this a few days ago but wanted everything to sink in before I wrote anything.
Bad:
-The humor just didn't have that ZEST that the TV show did. Something was missing.
-It bothered me that Nibbler talked, but didn't wipe anyone's memories.
-The Nibblonians can defeat large, evil brains, but couldn't even withstand getting hit by chairs by those disgusting aliens?
-The time travel thing got very confusing, probably around the time (heh) Bender went back to 2000 to kill Fry. Why was Yancy's son still named Phillip if Fry went back to his time and therefore never "disappeared"?
-Leela being all giggly and flirty with Lars got on my nerves very quickly. And poor Fry! I'm really tired of them going all over the place with this relationship.
-The songs were boring and didn't do anything for me.
-LaBarbara was so FLIGHTY! She kept jumping back and forth on the men she wanted to be with. I wanted to slap her!
The Good:
-Lars turning out to be Fry was very, very clever. I didn't figure it out until close to the end. I don't think I made the connection because I figured it was an instance where a voice actor will do several people in one show, or they were going for irony.
-While many jokes fell flat, some made me giggle or actually laugh out loud - "Is he being polite to you? Want me to beat him up?" *Fry to Leela* "I'm sciencing as fast as I can!" *Farnsworth*
-Copy Fry's life in the past was very touching and cute. Both Frys learned to let the things you love go, so they can be happy. My one nitpick - 12 years and he was still wearing the same clothes?
As for the Fry/Leela shippers, I think there was enough to make us happy (even in a weird, twisty way). However, the usual "reset" of the relationship is making me frustrated. Leela just can't seem to like Fry unless he's changed somehow - I'm thinking of the worm episode and the alternate universe episode. But after some thinking, I have come to the conclusion that Lars is what Fry has the potential to be. When Lars (or Copy Fry) thought he would never see her again, he stopped focusing on trying to win her, and found a purpose in life. When he did that, he matured and became a better person for it. If the "right" Fry can do that, maybe she'll come to him one day when he isn't even thinking about dating. I hope they at least address something else about this situation in the other movies, though.