Of course, everyone's already duly noticed and snarked at Legolas's mandatory Captain Obvious line: "A diversion!" (To quote Arwen... he's awfully pretty, but not too bright.)
.. and the Aragorn/Legolas wedding scene, also. (White tunic? Tiara? Inviting smile? Come on, that was just asking for it.)
Also, when Frodo is half-naked in the orc tower, he looks for all the world like Jim Morrison. Nobody I've talked to agrees at all- meh, maybe I'm just weird.
GANDALF: [ominously] "This may be the end of the world of men as we know it."
AUDIENCE: "And I feel fine!"