Celebrities on Set For the Week of July 13, 2012

Summer is heating up, but Hollywood's hardest-working celebrities aren't slowing down. Tom Cruise was all smiles while handling heavy weaponry on the Oblivion set in California, while across the country, Hilary Swank was spotted on the set of Mary and Martha in North Carolina. Elizabeth Olsen and Dakota Fanning worked on Very Good Girls in NYC, and in Massachusetts, Kate Winslet covered up in a robe before getting to work on Labor Day. Click through to see more stars at work!