The aging cast list of 'The Expendables 2' proved that old doesn't necessarily have to mean over-the-hill in Hollywood, with a solid $28 million opening over the weekend. The action-romp took the No.1 spot, knocking last week's domestic winner 'The Bourne Legacy' down to No.2 in the process ($17 million).

The sequel reunites lead man Sylvester Stallone with his partners in crime Arnold Schwarzenegger, Jean Claude Van Damme, Jason Statham and Bruce Willis, amongst others. It's not difficult to see why the movie performed well over the weekend -or who it appealed to - and it proves the surprise success of the 2010 original movie was no fluke. That opened to $34.8 million domestically before going on to gross $274 worldwide. According to Associated Press, Lionsgate had predicted a debut in the low $30 million range for the new movie, while some box-office commentators predicted around $40 million. David Spitz, executive vice president and general sales manager at the studio, said, "It always bodes well for box office playability when you have an older audience". Elsewhere at the box-office, stop-motion movie 'ParaNorman' landed a surprise third place, no doubt attracting the family audiences, while the heavily promoted 'The Campaign', with Will Ferrell and Zach Galifianakis took fourth spot. New drama 'Sparkle' - starring the late Whitney Houston - earned $12 million to take fifth.

The opening is likely to give 'The Expendables 3' the green-light, with the likes of Clint Eastwood, Harrison Ford and Wesley Snipes already rumored to be joining the cast.