Complex sentence: In 1933 she emigrated to New York, was given a test for films and this led to signing with Fox Film Corporation and making her film debut in the 1934 film "Sleepers East" using the stage name Mona Barrie.
Split into simpler sentences: In 1933 she emigrated to New York, was given a test for films and this led to signing with Fox Film Corporation. She made her first US film "Sleepers East" using the stage name Mona Barrie.