Complex sentence: He was cast as the romantic lead in the 1985 film "A Room with a View", the success of which prompted Sands to move to Hollywood in 1987 and pursue a career in American films.
Split into simpler sentences: He was cast as the romantic lead in the 1985 film "A Room with a View". In 1985, given the success of "A Room with a View", Sands decided to move to Hollywood and pursue a career in American films.