Question: When is the director of film Returned: Child Soldiers Of Nepal'S Maoist Army 's birthday?
Sentence (from "Robert Koenig (filmmaker)"): Koenig directed the documentary film , which won the 2008 Artivist Award for Child Advocacy and produced "Coexist", which was nominated for Best Documentary Film by the African Movie Academy Awards (AMAA) in 2011.
Relevant evidence: No