Rainbow is a 1978 American madefortelevision biographical film about the early years of singeractress Judy Garland based on the 1975 book Rainbow The Stormy Life of Judy Garland written by Christopher Finch. Directed by Jackie Cooper and starring Andrea McArdle as Judy Garland, Don Murray, Michael Parks, Piper Laurie and Rue McClanahan, the film was broadcast on NBC on November 6, 1978.
Source: Wikipedia