After Lex catches Miller exploring the abandoned whaling station on his own, she can't resist teasing him about being startled by a penguin.
Lex: Careful. They bite.
When the team finds the Predators' shoulder cannons. Stafford isn't very happy that the experts in archeology brought on the mission specifically to identify any strange or unusual artifacts can't identify the cannons.
Miller: Well, yeah, it is a good thing, cos' this is like finding Moses' DVD collection.
While moving through the pyramid looking for Scar (the surviving Predator), Alexa jokingly asks Sebastian "How do you say 'scared shitless' in Italian?" He answers with "Non vedo l'ora di uscire da questa piramide con te, perché mi sto cagando addosso...More or less."
Translated, that means "I can't wait to get out of this pyramid with you, because I'm shitting myself."