There is something seriously wrong with this film.
I had some hopes that this would be a nice family film for a friday night, but after watching it I was feeling uneasy and irritated. I feel it tries to be a sort of rosy fantasy depiction of reality, and at the same time it attempts to tackle a difficult subject - the death of a spouse. Its trying to be everything at the same time. It is also very odd that the film is apparently "based on a true story". I am somewhat familiar with the story in question... Perhaps they should have said inspired, at most. Also, there are several details in there that makes this just a BAD film:
-When the family arrives at the zoo, it comes complete with two cute blonde love interests for the father and the son. The scenes when the family arrive at the zoo made me cringe.
-The little seven year old daughter is almost disgusting with her constant saccharine delivery of "cute" lines. You can almost see some demented mother behind the camera cracking a whip, screaming "BE CUTE!" If there was just a single scene where she was a manipulative, egocentrical little monster obsessed with candy and toys (as many children that age are at times) perhaps this character would have felt a little real, at least.
-Elle Fanning who plays the son's love interest is either a poor actress or very badly directed. During one scene i actually let out an involuntary visceral moan of angst - this was partly because the scene was so cheesy, but mostly because of her acting.
-One of the scenes where the lead character looks at pictures of his dead wife was so obviously and coldly designed to make you cry that it felt like emotional rape. I almost did cry, but I refused to.
I could go on and on about this... But this is one of the worst examples of exploitation of emotional issues, cute children and animals and so on that I've ever seen. It actually mainly made me wonder if those animals (both the ones in the fictional zoo and on the set of the film) wouldn't be a lot happier in the wild. Also, reading some of the reviews on this site and the posts on the forum makes me wonder what kind of sycophants would actually voluntarily go out and post positive reviews and actively defend this movie on the net.