Career
His most notable documentary is Mankind"s Last Exodus, released in 1998 and sold in over 120 countries. Grann is noted for his interest in the topic of unidentified flying objects, but he is also known for outlandish promotion.
His most notable documentary is Mankind"s Last Exodus, released in 1998 and sold in over 120 countries. Grann is noted for his interest in the topic of unidentified flying objects, but he is also known for outlandish promotion.
