Clark Gable Gone with the Wound

10/19/2009 1:50 PM PDT
Clark Gable's grandson, Clark Gable III, took a stab at Hollywood nightlife this weekend -- and showed off his knife wounds while celebrating his 21st birthday in L.A.

As TMZ previously reported, Gable had a blade plunged into his rib cage during a fight at a house party in Calabasas this past August.

He says he suffered a collapsed lung.