Continuity mistake: When Haldir says, "Welcome Legolas, son of Thranduil," the outfit that Legolas wears is not the same in these shots than in the previous and following shots. Gimli's hair/beard are not as full and his prosthetics are a bit different too. Apparently this scene was one of the first to be filmed, but they realized later that this outfit wasn't working for the role of Legolas, so they changed it. Commentary on extended DVD.
Picture added by Super Grover
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