Clad in a maroon velevet bandgala, the 67-year-old, who was here for the red carpet premiere of the movie, insisted the film is a "pro-media" drama.
"You (the media) should go and watch it. It's actually a very pro media film. I hope you enjoy it, " Amitabh said.
Also present at the event were some members of the star cast Riteish Deshmukh and Gul Panag and director Ram Gopal Varma.
Aishwarya Rai, Abhishek Bachchan and Vivek Oberoi also made it to the do.
Co-produced by Madhu Mantena and Sheetal Talwar, "Rann" also stars Paresh Rawal in a pivotal role.