The Twilight Saga: New Moon (PG-13)
The characters in this movie should be arrested for loitering with intent to moan. Never have teenagers been in greater need of a jump-start. Granted some of them are more than 100 years old, but still: their charisma is by Madame Tussaud.

Gentlemen Broncos (PG-13)

As an amateur collector of the titles of fictional novels in movies, I propose that this one has the worst of all time:
Yeast Lords: The Bronco Years. You say you smiled? Me, too, and there are precious few smiles and laughs in "Gentlemen Broncos," which is not a very good movie title, either, although it might work for an X-rated film. The author of
Yeast Lords is a teenager named Benjamin, who writes science fiction and idolizes a famous sci-fi novelist named Dr. Ronald Chevalier as much as I once, and still do, admire the Good Doctor Asimov.