After a splashy premiere on April 2, 1954, 20th Century-Fox’s “Prince Valiant” enjoyed a respectable 5-week run at Grauman’s Chinese Theatre (in spite of Robert Wagner’s ridiculously embarrassing pageboy haircut.) As with all CinemaScope productions, it treated passers-by with a colorful neon marquee in which “CinemaScope” was bigger than the movie’s title.