Paris:(bemused) It's the winner of the look-a-like contest.
Early in the movie, another survivor startles the group staying at the ship while the others are looking for water. He gets shot by Zeke, who thought he was Riddick. Cue a shot to the background where Riddick is watching from Paris's spot while taking a drink.
Riddick leads the group back to the cargo ship for supplies. He says it "Looks clear." When Johns advances one of the Bioraptors/Demons swoops out of the cargo container, nearly taking his head off.
Johns I THOUGH YOU SAID IT WAS CLEAR!
Riddick:(shrug) I said, it looks clear.
Johns: Well, what does it look like now?
Riddick:(looks again, then deadpan) Looks clear.
After Johns gets torn apart by the creatures, we get this exchange: