Look Crashes The Movies....When a scene in Metro-Goldwyn-Mayer's "The Barkleys of Broadway," Technicolor musical starring Fred Astaire and Ginger Rogers, called for a Look Photographer, Hollywood found just the type in the person of Maurice "Butch" Terrell, Look photographer. Here's the way "Butch's" big moment on the screen will look. On the set, between his scenes, Actor Terrell reverts to being Look photographer Terrell to catch candid shots of the famous dancing partners, reunited for their