 The films running time was originally 120 minutes. Producer  Mervyn LeRoy (qv) realized that at least 20 minutes of the film  needed to be deleted to get it down to a manageable running time.  Three sneak previews aided LeRoy in his decision in what to cut. The  original film in its entirety was only seen once by an audience in  either San Bernadino or Santa Barbara and it was the only time the  famed Jitterbug number was seen by the public. After this preview  LeRoy cut the aforementioned Jitterbug number and the Scarecrows  extended dance sequence to "If I Only Had a Brain". A second preview  was held in Pomona, California, where the film ran 112 minutes.  After the preview, LeRoy cut Dorothys "Over The Rainbow" reprise  and a scene in which the Tin Man turned into a human beehive, and  the Emerald City reprise of "Ding Dong The Witch is Dead", as well  as a few smaller scenes and dialog, notably two Kansas scenes in  which the Hickory character was building a machine to ward off  tornadoes, as well as dozens of threatening lines by the Wicked  Witch of the West. By the third preview, held in San Luis Obispo,  the film finally was down to its 101