Memoir of a Snail is a quirky Australian stop-motion animation tragedy. Hard to describe without spoilers but it touches on some pretty rough topics and earns an R rating without really any swearing or violence, if that gives you an idea. My 19 year old daughter picked the movie based on seeing the animation style (very Coraline like) and a brief synopsis.
If you're in the mood for something off the beaten path its a really well made film but not something with a lot of re-watchability.