I filmen, vid slaget vid hjälmens djup, ses Legolas med hjälp av två knivar istället för sin pil och pil. Man kan anta att han sprang ur pilar. Jag minns att läsa i LOTR-wiki, att Legolas verkligen rinner ur pilar, och när det händer har han två knivar som han använder som vapen.
Från LOTR Wiki:
Legolas carries two weapons with him on his journey with the Fellowship. He sports a slender bow of Mirkwood which he aims with deadly precision. He prefers to pierce his enemies from afar, but he also carries a long knife of unknown make. In Lothlorien he was given a bow of the Galadhrim, stouter than those of the fashion of Mirkwood. Nevertheless he adopts his new bow and makes deadly use of it in the remainder of the War of the Ring. Legolas' skill with the bow is reknowned, perhaps even comparable to that of Beleg Cúthalion.
In the movie adaptation he wields an additional elvish long knife.
SOURCE - LOTR WIKI - LEGOLAS