RKO Radio Pictures's Laddie is a 1940 American drama film starring Tim Holt, Virginia Gilmore and Joan Carroll and directed by Jack Hively.

[2][3] An honest farmer's son, Laddie Stanton, falls in love with Pamela Pryor, the daughter of the Englishman who just bought the land next door.

After speaking with his family, Laddie decides to prove himself to Mr.Pryor by buying a portion of his estate and grabs his attention as he begins to farm on his plot of land.

When her initial efforts are unsuccessful, Little Sister sees her opportunity when Robert Pryor, Mr.Pryor's disowned and disgraced son, comes to visit and falls ill.

Furthermore, Stratton-Porter considered this novel to be quite autobiographical and so the character of Little Sister played by Joan Carroll on screen is representative of Stratton Porter's childhood self sharing a similar personality, interests and family dynamic.