The premise isn't that bad (OK, I'm being kind!), but the script is just so weak that it's almost unwatchable as Louis bumbles into yet another crisis every few minutes. It's just not funny or suspenseful or romantic or whatever it's trying to be. Not only is there no logic in the plot, but the film is so formulaic and predictable that there's no way anyone--not even small children--will find it terribly exciting. Even the musical choices are all painfully obvious. The only entertainment value is in the actors, who try so hard to make us laugh that they actually succeed a few times. Anderson is in high-energy mode, and he does hit the mark now and then, while O'Connell veers wildly between eye-bulging slapstick and sexy romantic comedy. The filmmakers use first-rate effects to animate the kangaroo, and when he's hopping around like a wild animal he looks pretty amazing. Unfortunately, he's usually acting more like Bugs Bunny than a kangaroo, and it's very, very stupid. The film is perhaps energetic enough to keep us from falling asleep, but that's about it.