The Informer is a 1929 British sound part-talkie drama film directed by Arthur Robison and starring Lya De Putti, Lars Hanson, Warwick Ward and Carl Harbord.

In the film, a man betrays his best friend, a member of the outlawed Irish Republican Army, to the authorities and is then pursued by the other members of the organisation.

[1] The later better-known adaptation The Informer (1935) was directed by John Ford.

The film was made at Elstree Studios by British International Pictures as the sound revolution was taking place.

The film was made with a soundtrack, sound effects and talking scenes.