Unlike the divine gift, the gift of blood can be corrupted by the giver as well as by the givee.

The blame seems to rest with your father.

On the surface, the film is a globe-trotting gross-out caper in which Nobby, who's from a hellish version of the titular Lincolnshire town (twinned with Chernobyl), is reunited with his long-lost brother Sebastian (Mark Strong), who has become a spy for the British secret services. That makes him a servant of the powers-that-be that have no time for Nobby and his scrounging ilk.

a.d. 978. — In this year was held the celebrated gemot at Calne in Wiltshire, when the floor gave way […]