New Delhi: He might be turning 70 on October 11, 2012, but Amitabh Bachchan has still got the groove. He has played the role of a father, a grandfather, but that doesn't mean that Big B's charm has stopped making the younger heroines blush. It most definitely would be difficult to remain immune to his grace, baritone, and wit. Don't believe us? Rumour had it that while shooting for the...