Complex sentence: Bradbury recommended Clayton to be the director, having known him since they both worked on the movie "Moby Dick" in 1953-1954, and again on an unproduced adaptation of "Something Wicked This Way Comes" at Paramount in 1977.
Split into simpler sentences: Bradbury recommended Clayton to be the director, having known him since their work together on "Moby Dick" in 1953. They had also previously worked together on an unproduced adaptation of "Something Wicked This Way Comes" at Paramount in 1977.