Sylvester Stallone was rushed to the hospital after he was knocked unconscious on the set of his new Rocky movie 'Rocky Balboa.' The film crew initially failed to call emergency services thinking the Hollywood legend, who had suffered a vicious blow to the head in the ring, was still acting. Stallone's mother Jackie said: "At first everyone thought Sylvester was acting when he fell to the floor, but it was serious. Fortunately he has recovered now."
http://www.starpulse.com/news/index.php/2005/12/21/sylvester_stallone_recovers_from_blow_to