Old Mother Riley Joins Up is a 1940 British comedy film directed by Maclean Rogers and starring Arthur Lucan, Kitty McShane, Martita Hunt, Bruce Seton and Garry Marsh.

Old Mother Riley works as a nurse before volunteering for the Auxiliary Territorial Service.

With the help of her daughter Kitty and Kitty's boyfriend Lieutenant Travers, she thwarts a plan by enemy agents to steal important secret documents.

[2] TV Guide called the film, "a tolerable romp that kept patriotic English fires burning during the early part of WW II.

This article related to a British comedy film of the 1940s is a stub.