Primer
i had such a hard time believing in the credibility of the characters... which got in the way of everything else. time travel should be exciting, intense, foreboding, etc! but in the first ten minutes i was so frustrated by the way the lines were delivered: poor timing, really bad sound, from two super bland guys who i had no motive to care about... there was absolutely NO depth in their personalities, no opposition to their story, yawn yawn yawn. i really enjoy this genre and was hoping for a lot more from this movie.
Hardball
I didn't make it past the first 20 minutes. The kid's extremely foul language combined with Keanu Reeve's terrible acting made it unbearable.