George Lucas(I)

Letters/numbers THX-1138 (name of his first "real" movie) appears in many films: The licence plate number on Milner's deuce coupe in American Graffiti (1973) was THX 138. A battle droid who captures Jar Jar Binks and the Gungans has the number 1138 written on his back. In Guerre stellari (1977), Luke Skywalker said (with reference to Chewbacca) "Prisoner transfer from cell block 1138." In L'Impero colpisce ancora (1980), General Rieekan says, "Send Rogues ten and eleven (11) to station three-eight (38)."