The Informer (1929 film)

The Informer is a 1929 British Parttalkie drama film directed by Arthur Robison and starring Lya De Putti, Lars Hanson, Warwick Ward and Carl Harbord. The picture was based on the novel The Informer by Liam OFlaherty which was more famously adapted by director John Ford in the 1935 film The Informer. In the film, a man betrays his best friend, a member of a terrorist organisation, to the authorities and is then pursued by the other members of the organisation.

Source: Wikipedia