When the SD-6 team is in Australia to pick up Calder, they are briefed outside his house in a van. Agent Dixon is sitting in the driver's seat (left front) talking over his shoulder to Sydney. This is a blooper since in Australia they drive on the left side of the road, therefore the driver's seat would have been the right front seat.
Both Sloane and Vaughn mispronounce Mackay, the town in Queensland, Australia where Sydney is sent to find Calder. They pronounce it "Mack-ay", the end rhyming with the letter A, when it's actually pronounced "Mack-ye", rhyming with the letter I.