How was made first scene of Apocalipse Now ( Saigon Hotel Room) HD

How filmmakers made first scene (Martin Sheen dancing and broking the mirror). Recorded by Francis Ford Coppola s wife when they are making it. APOCALIPSE NOW: Apocalypse Now is a 1979 American epic war film set during the Vietnam War, directed and produced by Francis Ford Coppola and starring Marlon Brando, Robert Duvall, and Martin Sheen. The film follows the central character, U. S. Army special operations officer Captain Benjamin L. Willard (