It will be like bedding down in a nest of rattlers! Sierra is directed by Alfred E. Green and adapted to screenplay by Edna Anhalt from the novel "Mountains Are My Kingdom" written by Stuart Hardy. It stars Audie Murphy, Wanda Hendrix, Burl Ives, Dean Jagger and Richard Rober. Music is by Walter Scharf and the Technicolor cinematography is by Russell Metty. 1950 is right at the beginning of Audie Murphy's film career and it's a big indicator of where his genre staples were laid. Of the three Westerns he made in 1950, Sierra is the weakest, but even then it's above average and shows enough of…