With some sort of global apocalypse having occurred up top, a family have taken refuge deep inside a salt mine where dad’s previous profession in the energy sector has ensured that they live a civilised and well appointed life. With Reubens and Rembrandt augmenting their oak-clad walls, Michael Shannon and Tilda Swinton have brought up their son, George MacKay, with the help of her best friend Bronagh Gallagher, a doctor (Lennie James) and their gay butler (Tim McInnerny). They spend their days rehearsing for disaster scenarios and rearranging their home, whilst the son writes a memoir for his ...