A is for Angry. As in Kirk asking the Sha-Ka-Ree entity why it's angry after it lashes out at him with an energy bolt.
B is for Bad special effects.
C is for Centre of the galaxy. Where they went.
D is for "Don't you know a jailbreak when you see one?" by Scotty.
E is for Everyone. As in: who was disappointed this movie wasn't better?
F is for Fan. Some were indeed disappointed. Others went dancing with Uhura.