Some people call them movies, others call them motion pictures, and some call them films. The term "movie" -- which seems to be the most popular name for the kind of entertainment we find at today's theater -- is a shortened version of "moving pictures," which made their early debut (in rather rough form) late in the 19th century. Those early movies were silent but sometimes accompanied by a live pianist, organist, or orchestra in the theater. Then came "talkies" and "Technicolor." Movie posters and playbills from every decade are favorite art forms and avidly collected.