Complex sentence: Jon Landau (born July 23,1960) is an American film producer, known for producing "Titanic", a film which won him an Academy Award, and the 2009 film "Avatar".
Split into simpler sentences: Jon Landau (born July 23,1960) is an American film producer. He is best known for producing "Titanic", a film which won him an Academy Award, and most recently, "Avatar".