Question: Which film has the director who is older than the other, A Brief History Of Time (Film) or Springtime In The Sierras? 
Sentence (from "Springtime in the Sierras"): Springtime in the Sierras is a 1947 American Trucolor Western film directed by William Witney and starring Roy Rogers, Trigger, Jane Frazee and Andy Devine.
Relevant evidence: Yes