World No. 1 Novak Djokovic made his movie debut in Bulgaria this week with a brief appearance in Sylvester Stallone's mega-star production "Expendables 2", Nu Boyana film studios said.
"Djokovic has a small but not insignificant part in 'Expendables 2', where he plays himself," Dimitar Dereliev from Nu Boyana told AFP.
The tennis star spent just over a day filming in Sofia and left early Wednesday, he added.
"Expendables 2", which stars Stallone, Jason Statham, Jet Li, Arnold Schwarzenegger, Bruce Willis and Jean-Claude Van Damme, is scheduled to open in cinemas in August 2012.