Markell Productions presents ; co-produced with the AVRO, Netherlands ; produced & directed by the Markell brothers, Thorkell Hardarson and Örn Marinó Arnarson
Black Valley Films [presents] ; in association with Boomdozer, Inc. ; a film by Scott Hamilton Kennedy ; written & produced by Trace Sheehan, Scott Hamilton Kennedy ; directed by Scott Hamilton Kennedy ; narrator & script consultant, Neil DeGrasse Tyson
Black Valley Films in association with Boomdozer, Inc. ; a film by Scott Hamilton Kennedy ; written & produced by Trace Sheehan, Scott Hamilton Kennedy ; directed by Scott Hamilton Kennedy ; narrator & script consultant, Neil DeGrasse Tyson