Audio problem: Before Jackie puts on the Dutch shoes a woman with another pair of Dutch shoes is seen running away. A shot later she is seen walking away behind Jackie and you can't hear her shoes.
Audio problem: Jackie is holding on to the guy while hanging out of the helicopter when he asks him why he set them up. It is obviously not his voice.
Answer: It's quite possible because most movies use dubbing (or "looping") as part of the post-production work to enhance the quality or fix minor sound problems. Sometimes a different actor's voice is dubbed over a minor on-screen character.
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