Gripping ‘Fermat’s Room’ not for exam students

Even if maths was your weakest subject in school you couldn’t fail to be intrigued by this stylish thriller in which four mathematicians are invited by a mysterious stranger, the Fermat of the title, to come to an isolated location the better to work on the world’s great enigma.

Directors: Luis Piedrahita/Rodrigo Sopera

Cast: Lluis Homar, Alejo Sauras, Elana Ballesteros