Pratt sets the pace at the Brickyard 400 in Indianapolis. Plus: Olivia Wilde, Ian Somerhalder & more!

  • ON YOUR MARK  photo | Chris Pratt

Credit: Michael Hickey/Getty

Published: Monday Jul 28, 2014 | 07:00 PM EDT

ON YOUR MARK

Chris Pratt gets behind the wheel as an honorary pace car driver at Sunday's Brickyard 400 in Indianapolis.