Earlier, with his technique improving, Carl decided to make an independent film which was an anthropological and ethnological documentary on Morocco entitled "Land of the Moors" which was later featured at the Strand Theater in New York. This effort was the beginning of his deep involvement as a pioneer of documentary and educational films of primitive people, their land, and customs. These films were produced by the Urban Institute, which Carl joined, headed by Sir Charles Urban, and it was this company that expanded the use of documentary films and later its own motion picture color process.