I very rarely rent comedies, but I'm a fan of Ben Stiller. I like the neurotic comedy thing so Ben does it for me. This movie started off kind of dumb and boring and I was like, "uh oh....another waste". Finally the story got interesting when he met the psycho girlfriend. I was totally impressed with her performance (Mila Akerman?). She reminds me of Cameron Diaz. But if Cameron Diaz played the part of the girlfriend, I know I wouldn't have liked this movie, she's too over the top and self-aware and a crap actress. What I loved about this movie is the unraveling of how much of a loser she turns out to be. I enjoyed watching Ben Stiller have to deal with her and slowly start to realize what he had got himself into. I was like, "ha ha, you ended up with a looneybird". If you have issues with men, you actually get enjoyment out of seeing him all dissapointed and screwed over. There are some dull moments, it's not a perfect comedy, but overall, "Hearbreak Kid" had me laughing out loud in the genuine giddy way near tears. It's extremely rare for me to laugh, I'm sort of jaded like everybody these days. I think Ben Stiller is fantastic, and I loved Mila's performance, she made the movie for me. This is now one of my favourite comedies and worth owning, it deserves more praise than what it's getting!