Here Come the Littles (1985)

Henrys parents are lost in Africa so he must live with his greedy and heartless Uncle Augustus In the crevices of the house live the Littles kind elflike creatures August enslaves Henry and wants to tear down his house to build a shopping center Grandpa Little cares for Tom and Lucy the Littles children Tom befriends a vicious cat by removing a splinter from his paw After a series of adventures the Littles and Henry get evidence of Augustus plot to steal Henrys home Augustus is arrested the house is saved and all ends well