A Family Affair is a 1984 Hong Kong comedy-drama film directed by and starring Dean Shek, and co-starring Samuel Hui, Jenny Tseng, Olivia Cheng and Melvin Wong.

Wing-cheung (Samuel Hui) and his wife Nancy (Olivia Cheng) have separated due to personality clashes, leaving their pair of children, 10-year-old Maisy and 7-year-old Tommy, under the care of Nancy's father, Alex (Dean Shek).

Not wanting his grandchildren to fall into the hands of stepparents, Alex devise a plan for Wing-cheung and Nancy to reconcile.

Feeling disappointed and upset, Tommy and Maisy run away from home.

[1] The film grossed HK$22,129,187 at the Hong Kong box office during its theatrical run from 15 August to 5 September 1984.