Happy Birthday, Big B! Star of the century, Mr. Amitabh Bachchan turns 80 today. He started his career in 1969 and has been entertaining the masses ever since. Even at the age of 80, he is working round the clock. However, in the early 90s, there came a point when Amitabh decided to take a break from acting. It wasn't a news well-received by his fans and colleagues. Celebs like Govinda, Aamir Khan, Javed Akhtar amongst others reacted to Big B's shocking decision. Check out the throwback video!