This movie was shown at Panic Fest. The extremely shocking opening scene is practically the only thing director Ariel Vida’s “Trim Season” has going for it; from there, the film just declines. That kind of start actually makes the rest of the slow-moving story feel even more protracted than it is. I'm not interested in hearing anyone defend it as a "slow burn"—if a movie takes too long and ceases to be enjoyable, …