Iron Man offers to give voice to Zuckerberg's AI assistant

Actor Robert Downey Jr, who plays Marvel superhero Iron Man, on Thursday offered Facebook CEO Mark Zuckerberg to give voice to the company's artificial assistant 'Jarvis'. Downey said to Zuckerberg on Facebook, "I'll do in a heartbeat if Bettany gets paid and donates it to a cause of Cumberbatch's choosing...that's the right kind of STRANGE!"