- The camel in the film is the most difficult animal for the cast and crew to deal with, because the camel is often moody and kicks, and the most unbearable is the smell of the camel, which all the crew members complained about.
- During filming, the crew also used mechanical camels.
- In order to shoot the scene in Sydney where Charlie and Louis evade police tracking on the streets of Brooklyn, the crew brought eight New York taxis, multiple police cars and some important traffic signs from the United States.
Kangaroo Jack behind the scenes gags
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Charlie Carbone: My name is Carbone, which means skinny white boy with a gun
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[Sal watched his factory of stolen merchandise become raided by the NYPD on the news]
Sal Maggio: [disappointed] Louis Booker, you degenerate moron. Were these Medieval Times and you, a knight in shining armor, you would have, I have no doubt, slayed the maiden and saved the dragon.
[Waffles, Louis' puppy growls]
Louis Booker: Shh! Waffles!
Charlie Carbone: Sal, we can explain...
Sal Maggio: [cuts Charlie off] As for you, Charlie. After the tragic death of your father, I married your mother promising her I would raise you as my own. *You* chose not to take the Maggio name. I did not complain. And when you wanted to go to Beauty School, as boys who lose their fathers early in life often do, I did not snivel at interventions, did I?
Charlie Carbone: No, Salvatore, you didn't. In fact...
Sal Maggio: In fact, I happened to bought a beauty parlor so you could sit on you lazy butt all day long. $4.5 million you cost me. Were you anybody else, you be dead by now.
Charlie Carbone: Look, Sal, we know that your upset.
Sal Maggio: It's not your fault.
Charlie Carbone: What?
Sal Maggio: A lion can raise a mouse, but the mouse is still a mouse. And you, Charlie, are that mouse. Look at this. He takes it. Chicken blood.