Continuity: During the scene in which Charlie and Louis manage to crash their plane, they hit a chimney and the plane's left wing goes flying on its own. Moments later, however, it has attached itself to the plane again, before in the next shot disappearing again.
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Mistakes
This mistake happens in the plane scene. At the start, the plane says "Dingo IV". But when they crash, the I and the V look different. See more...
Trivia
Originally, the story was very different. The kangaroo appeared only in one scene, but the crew liked it so much, they changed the whole movie. See more...
Kangaroo Jack mistakes
Continuity: When Charlie and Louis are on the plane to Australia, and Louis gives the candy to Charlie, Charlie's hair is untidy in the back, but when he's eating the candy, his hair is flat.
Revealing: Any time that Charlie is kicked by the kangaroo, they show him falling back onto the ground. But, if you look closely, they just used the same shot over and over. The exact same two lines in the dirt are to his left by his head each time.
Kangaroo Jack trivia
Originally, the story was very different. The kangaroo appeared only in one scene, but the crew liked it so much, they changed the whole movie.