Simplify the following text for a Grade 7 native English-speaking person.
Original: In a 2002 worldwide poll by `` Sight & Sound '' Keaton 's 1927 film titled `` The General '' was number 15 on their `` Best Films of All Time '' list .
Simplified: A 2002 worldwide poll by Sight & Sound ranked Keaton 's The General as the 15th best film of all time .