And I didn't like the fact that just because Vin Diesel is voicing Groot, which is something I'm totally fine with, you gotta make Groot look more... "Vin Diesel-ish"? Really Marvel? And you can give Gamora pink hair but not the yellow eyelids tattoos? Or skin color? Wtf!! Not that I don't like Zoe Saldana, love her as an actress. But I felt she played way too many colored aliens and it kinda bugs me. Fuck she even ruins the look of Gamora.
I'm sure they'll at least touch on how big Groot can get and even his re-growth process. Sacrificing the familiarity of characters from comics for the actor's likeness through motion capture isn't too abused here, IMO. And I prefer her current design to what the film's earlier concept art and action figures had her looking. Actually, she looks great.