My favorite scene off the movie is, after being chased by the sharks, Dory and Marlin dive so deep that no light is seen, and in the blackness Dory forgets the chase and asks Marlin "Are you my consciousness?" :)
I think my favorite part is when Marlin ended up with the Turtles and they were in awe of him; oh I love that part. and the one when the big bird told Nemo his dad was looking for him. that's a good one.