Complex sentence: Working under appalling conditions, the people are encouraged by Father George Gapon (Julian Glover) to take part in a peaceful procession to the Winter Palace to present a petition to the Tsar.
Split into simpler sentences: Working under appalling conditions, the people are encouraged by Father George Gapon (Julian Glover). He leads many workers in a peaceful procession to the Winter Palace to present a petition to the Tsar.