Complex sentence: The plot of the movie is virtually unchanged from that of Shakespeare's original play, the only major differences being the modern-day setting, the switching of Conrade's gender, and expanding Ursula's role slightly by giving her some of Margaret's scenes.
Split into simpler sentences: The plot of the movie is largely unchanged from that of Shakespeare's original play. Differences include the modern-day setting, the switching of Conrade's gender, and expanding Ursula's role slightly by giving her some of Margaret's scenes.