Complex sentence: Duryea moved to Hollywood in 1940 to appear in the film version of "The Little Foxes", continuing to establish himself with supporting & secondary roles in films such as "The Pride of the Yankees" & "None But the Lonely Heart".
Split into simpler sentences: Duryea moved to Hollywood in 1940 to appear in the film version of "The Little Foxes". He continued to establish himself with supporting & secondary roles in films such as "The Pride of the Yankees" & "None But the Lonely Heart".