Any remake of an Amitabh Bachchan film cannot affect 'Brand Bachchan', says actor Prateik, who believes the megastar is irreplaceable.

"I don't think anyone can replace the brand 'Bachchan'. You can call him a brand. But for me, he defines Indian cinema when it comes to actors, " the 25-year-old said here at the launch of a gym.

Prateik and Big B shared screen space in Prakash Jha's "Aarakshan". The young boy is currently busy promoting his new film "Ek Deewana Tha", which has British model Amy Jackson as the female lead.