Mark Kermode and Simon Mayo welcome Gareth Edwards who talks about his debut feature Monsters, a sci-fi documentary hybrid similar to District 9.Also on the programme, an astonishing story from listener Grace, who explains how a "supreme rant" by the good doctor about a Vatican-baiting Tom Hanks blockbuster saved her friend's life.In a coma for days at University College Hospital after a cardiac arrest, Grace knew there was only one thing that could get her friend Andrew to respond. She played him a recording of Dr Kermode's review of Dan Brown's Angels and Demons - and Andrew "moved his head towards the Doctor's splennetic outburst".Andrew is now awake, walking - and getting married. As Grace neatly sums it up: "Good news is hard to find sometimes - but at last we've found a reason for the making of Angels and Demons".Mark and Kermode's latest possibly life-saving reviews include Unstoppable, The American, Leap Year, The Girl Who Kicked The Hornet's Nest, London Boulevard and Machete. Email: mayo@bbc.co.uk Text: 85058 (charged at your standard network rate) Twitter: @wittertainment.