yea... that looks kinda below average to me; it might have a few slightly amusing moments, but it's probably going to be very predictable & bland overall (like most romantic comedies these days).
she'll probably spend most of the movie being stupid and chasing justin timberlake's character, but in the end she'll grow up & realize she shouldn't have to change herself for any man, and end up with the gym teacher who she realizes is actually a great guy. that's my prediction anyway.