This movie gives me such a depressed feeling and I dont even know why

I have no idea why because it isn't THAT great of a movie. I didn't connect to any of the characters at all plus I didn't like the 'Heaven'. I didn't enjoy it as a movie at all.

But for some reason it always leaves me with a depressed, painful feeling and its one of few movies to do this to me. I don't even know why it does this considering I didn't care for any of the characters at all. But I think it might be the concept I found painful: finding your soul-mate only to have your lives ripped apart via the kids' deaths, then your husband's. And to top it all, being sent to Hell. Plus it could be because they were the 'perfect couple' which is so hard to find especially nowadays.

It just gave me this weird depressed sad feeling and I don't know why. I wonder if anyone else felt the same way.