57th Cannes Film Festival: "Fahrenheit 9/11", directed by Michael Moore wins the Palme d'Or. First documentary to win.
- NHL Eastern Conference Finals: Tampa Bay Lightning beat Philadelphia Flyers, 4 games to 3
- The U.S. town of Hallam, Nebraska, is wiped out by a powerful F4 tornado that broke a width record at an astounding 2.5 miles wide. It also kills one local resident.