Filmmaker Karan Johar got a rude wake-up call on Friday when Maharashtra Navnirman Sena (MNS) activists protested the use of Bombay instead of Mumbai in his latest movie Wake Up Sid as soon as it was released.

Directed by Ayan Mukerji, the film, starring Ranbir Kapoor and Konkona Sen Sharma, is the latest offering from Dharma Productions Pvt Ltd.