 Sternberg and screenwriter Jules Furthman would write a script for "Morocco" based on the Vigny story.On the basis of test footage from the yet unreleased "The Blue Angel" provided by Sternberg, producer B. P. Schulberg agreed to bring the German actress to Hollywood under a two-picture contract, in February 1930.When Dietrich arrived in the United States to begin filming "Morocco" "[she] was subjected to the full power of Paramount's public relations machine" launching her into "international stardom" "before" American moviegoers had seen her as Lola Lola in "The Blue Angel", which appeared in U.S. theatres in 1931.