A stuntman was killed and another was seriously injured in an explosion on the Bulgarian set of The Expendables 2 yesterday afternoon. The movie’s second unit stunt team was filming on a reservoir called Lake Ognyanovo in the southwestern part of the country when the accident occurred, while the movie’s main unit was shooting about 2.5 hours away, according to the film’s unit publicist. The names of the stuntmen are not yet being released, but Nu Image/Millennium Films issued a statement: “It is with great regret that we confirm this unfortunate accident. Our hearts go out to the families and those on the production affected by this tragedy. The filmmakers are working closely with the authorities in responding to and investigating this accident.”