Question: Which film has the director who is older than the other, A Better Tomorrow or Hospital Massacre? 
Sentence (from "Hospital Massacre"): Hospital Massacre( also known as X- Ray, Ward 13 and Be My Valentine, or Else ...) is a 1981 American slasher film directed by Boaz Davidson, written by Davidson and Marc Behm, and starring Barbi Benton.
Relevant evidence: Yes