Audio problem: Rem's lips don't move when he says "Good luck" to the aliens.
Continuity mistake: Logan's weapon is repeatedly leveled at Karen 4, raised, then leveled again between camera shots.
Audio problem: Joanna says, "I sent two of the crew after them", but her mouth does not move.
Continuity mistake: After Logan and Jessica are finished swimming and splashing in the water pool and they climb out, their hair and clothes are completely dry when Karen 4 appears a few seconds later.