Complex sentence: He also played John Clum in "Walk the Proud Land" (1956), was hired by Joseph L. Mankiewicz to play the lead in "The Quiet American" (1958) and co-starred with James Stewart in "Night Passage" (1957).
Split into simpler sentences: He also played John Clum in "Walk the Proud Land" (1956). He co-starred with James Stewart in "Night Passage" (1957).