We've already showed you photos from The Expendables 3 set featuring Sylvester Stallone, Wesley Snipes, Randy Couture and Terry Crews, but we have yet to see the biggest addition to the cast, Harrison Ford, until today. Arnold Schwarzenegger posted the following photo to his Twitter and Instagram accounts, featuring the action icon standing alongside Harrison Ford and director Patrick Hughes on the set, to commemorate Arnold's first day of production. Stay tuned for more photos as shooting continues in Bulgaria.

"It was a fantastic first day of filming on Expendables 3. Great to work with Harrison and our... http://instagram.com/p/dpXeI3Dcbc/"