from movie-mistakes:
<< When the orcs charge down the mountain, Legolas shoots his arrows at them. At one point, he has three left and doesn't fire any more, but in the shot by the lake, he has about 20, which then change colour to a vibrant green. [In the book, Legolas always collects the orc's arrows to use. So it's likely that they use green arrows and he picked them up after the fighting was over.] >>
<< When the orcs charge down the mountain, Legolas shoots his arrows at them. At one point, he has three left and doesn't fire any more, but in the shot by the lake, he has about 20, which then change colour to a vibrant green. [In the book, Legolas always collects the orc's arrows to use. So it's likely that they use green arrows and he picked them up after the fighting was over.] >>
