This is described as a romantic comedy. That, it is not. This a drama that happens to include romantic and comedic elements. It's not a bad look at the struggle of addiction, and brings to light sex addiction, which isn't talked about very much. I wasn't thrilled with the aspect of questioning what's wrong with someone who chooses an addict, and there was one very uncomfortable (for me) sex scene. But overall, it's not a waste of time to watch.
Review of Thanks for Sharing
