THE LORD OF THE RINGS TRILOGY
Director Peter Jackson has a cameo in each of the films.
Fellowship of the Ring: He is the man eating the carrot as the four hobbits walk through the village of Bree in the rain to get to the Prancing Pony.
Two Towers: He is a Rohan soldier during the battle at Helm's Deep and he throws an arrow through a hole at an Urik-Hai.
Return of the King: He is the sailor that Legolas kills outside the mountain after the Army of the Dead sequence.