Preity Zinta has refused to play Amitabh Bachchan's widowed daughter-in-law in Ravi Chopra's 'Babul'. Rani Mukherjee accepted it. She explains, "I don't know why I said no to Babul. It would've been great to share the same frame as Amitabh Bachchan. Also, Salman and I are very good friends. But the role, though brilliant, didn't seem right for me."