Complex sentence: Edmond O'Brien (September 10,1915--May 9,1985) was an American actor who is perhaps best remembered for his role in "D.O.A." (1950) and his Oscar winning role in "The Barefoot Contessa" (1954).
Split into simpler sentences: Edmond O'Brien (September 10,1915--May 9,1985) was an American actor who is perhaps best remembered for his role in "D.O.A." (1950). He played an Oscar-winning role in "The Barefoot Contessa" (1954).