Zac Efron: 'Heartland' Racecar Driving!

Zac Efron takes a break from filming his latest movie, Heartland, on Sunday (July 17) in Newton, Iowa.

The 23-year-old actor stars opposite Dennis Quaid and Kim Dickens in the film, which is a drama about an enterprising family whose plans cause problems within his family.

Earlier in the month, Zac was spotted out with friends including Ryan Rottman and Rumer Willis for a day of shopping and hanging out in Studio City, Calif.

Zac also went shirtless at an Independence Day party held on the beach in Malibu!