In the beginning of the movie, after the prologue, when Gandalf, Aragorn etc. are all going across Isengard to 'interview' Saruman, Pippin spies the palantir in the water so he jumps off Aragorn's horse and wades through the water to get it. the water is above his belly button but after he leans in the water to get it, you would think he would have gotten at least his shoulders wet. instead only up to his elbows are wet, so he must have exeptionally long arms!