In 'Swing Vote,' Kevin Costner plays a bumbling single dad whose vote suddenly decides the outcome of a presidential election. Our Thea Andrews joined the real-life father of five with his 12-year-old, on-screen daughter, Madeline Carroll, to see their family chemistry in action! 

Kelsey Grammer also stars in the film as the seated president, while Kevin's old 'Waterworld' pal, Dennis Hopper, plays a candidate. Nathan Lane is his sarcastic campaign manager. 'Swing Vote' opens in theaters on August 1.