Dan Brown's Inferno teaser asks a tough question

Remember when everyone in the whole world and their mother was reading The DaVinci code? Well that was way back in 2003 when the book first launched, followed by a movie starring Tom Hanks in 2006.

Yep, the first film was 10 years ago and sequel Angels & Demons (which you might even have forgotten existed) came out in 2009. Still, despite terrible reviews and the fact that Hanks is now 60, there's another one on the way.

Inferno is based on Brown's 2013 book of the same name and sees leading character Robert Langdon dealing with a terrible biological weapon - because a Harvard professor is definitely the best person for that job.