First off, the reason so many people hate this movie isn't because it doesn't end with a neat little bow, whatever that means.
It's because nobody in this movie acts like a real person.
Claire, the main character leaves her middle school or late-elementary school aged son by himself 80% of the time after her husband, his father has disappeared. Did she ever once think that he might just run away? I mean, that'd be pretty emotionally distressing, right? But thank God the script dictates that he doesn't run away, so it's fine.
The girl who can laughingly be called the antagonist is a complete cliché. I can't tell you how many times I've seen the young mistress type in a movie or television show. They always have one distinguishing characteristic, but she's got two - and both are stupid. One is that she's an art student. Her "art" is literally light fixtures that look like they were bought at Pottery Barn, and piles of sticks. Her other distinguishing characteristic is that she thinks she knows what's best for Claire and her husband - yet another motivational cliché typical of awful writing.
I saw "Rings" the other day, and I have to say, the only thing "Claire in Motion" has over "Rings" is that its lead actress gives a slightly better performance. Slightly.
When you're worse than "Rings," you're one of the worst films ever made. I think that's my new bar. There's "Rings," and then there's "Claire in Motion," and then... I'm not sure how you can get worse than that. Maybe "After Last Season" is technically worse, but not by much.