Answer
Yes, David Selznick had five children. His first wife, Irene Mayer Selznick, gave birth to two daughters, Irene Selznick Adler and Margaret Selznick Loewenthal, in 1935 and 1938 respectively. He then had three children with his second wife, Jennifer Jones: Patricia Selznick, Christopher Selznick, and Amy Selznick.