New Delhi -- Actor Sanjay Dutt feels honoured to work with Big B once again in the film Department. Dutt has already worked with him earlier in movies like Kaante, Eklavya and Viruddh. "It is an experience in itself to work with Mr. Bachchan. I feel privileged to have worked with him in so many films. I still get nervous in front of him but he makes us all very comfortable," Dutt said. But Department will see him play the leader of an encounter squad as "Department is a commercial film with a meaning. It has undercurrent violence. It deals with the Anti Terror Squad that was set up in the 90's to eradicate the underworld." The movie is to release on May 18.