Complex sentence: Cooper's most famous film was the 1933 movie "King Kong" for which he was awarded an honorary Oscar for lifetime achievement in 1952 and was a star on the Hollywood Walk of Fame in 1960.
Split into simpler sentences: Cooper's most famous film was the 1933 movie "King Kong". He was awarded an honorary Oscar for lifetime achievement in 1952 and received a star on the Hollywood Walk of Fame in 1960.