Complex sentence: Robert "Wingnut" Weaver (born 1965) is an American surfer who has appeared in several of Bruce Brown's surf films three of which he starred alongside Pat O'Connell.
Split into simpler sentences: Robert "Wingnut" Weaver (born 1965) is an American surfer. He has appeared in several of Bruce Brown's surf films, starring in three of them alongside Pat O'Connell.