Other mistake: When the group returns to the lake where Leo crashed, as he is underwater leaving the pod with his pack, he has it in his left hand. The next scene he grabs Estella Warren's hand with his left. The pack is gone. As they swim up, if you watch it frame by frame, the pack instantly appears back around his left forearm before they surface.
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Suggested correction: The bag was always in his left hand.
Might want to add he was holding on to the strap so it fell out of camera view when he grabs her hand, you see it when they swim up.
