Question: Who appeared in 270 films between 1910 and 1952 and directed 38 silent films between 1915 and 1927, Richard Boleslawski or Howard M. Mitchell?
Sentence (from "Howard M. Mitchell"): He appeared in 270 films between 1910 and 1952 and directed 38 silent films between 1915 and 1927.
Relevant evidence: Yes