The Yellow Balloon

1950s British drama set in London's East End. 12-year-old Frankie (Andrew Ray) runs off into a bombed-out house with a yellow balloon that belongs to his friend who, while trying to get the balloon back, falls to his death.

The accident is witnessed by criminal Len (William Sylvester), who persuades Frankie that the police will believe he killed the boy and blackmails him into helping him in a robbery that ends in a murder.

Len realises he will have to silence Frankie and the two end up in a cat and mouse chase in the ruins of the London Underground.