Cool footage from 'Exendables' set debuts online!

Ethelmae’s Blog has posted a short but pretty cool behind-the-scenes clip from the set of Sylvester Stallone's upcoming action spectacle "The Expendables," and you can check out the footage after the jump. The first part of the clip shows Sly as he gives some directions, and the second part takes us to a scene during which Eric Roberts and Stone Cold Steve Austin take a jump.

Written by Stallone,"The Expendables" follows a group of tough mercenaries who infiltrate a South American country to overthrow its dictator and free its population. Sly, Jet Li, Jason Statham, Dolph Lundgren, Britanny Murphy and Mickey Rourke co-star. See it in theaters April 23, 2010. Check out some recent set photos here.