Celebrity reporter Kristen Aldridge reveals how the 30-year-old actress prepped for the action-packed movie Total Recall. Biel's longtime personal trainer Jason Walsh told SHAPE that Jessica is one of the hardest working women he's seen in the gym and she's super-nice to boot! Watch the video to learn all the details about her training regimen. For more celebrity workout videos, check out the rest of our 10 Hottest Stars of Summer videos here.
| May 31, 2013