Enjoy a free, four-day exploration of complex topics including peace, social justice and tolerance at the fifth annual Peace on Earth Film Festival, hosted at the Chicago Cultural Center's Claudia Cassidy Theater March 7-10. All screenings are free and open to the public. Films include "A Whisper to a Roar," "180 Degrees" and the world premiere of "The Second Cooler." For more information on screening times, visit the festival's website.