Our Hospitality (1923)
This is a costume-period piece set in 1830s Kentucky. The Canfields and the
McKays are feuding clans (essentially the real life Hatfields and McCoys
renamed). In New York Willie boards a train (an exact recreation of the
original "Stephenson Rocket"); on board he meets Virginia Canfield (the
actress is Buster's real life wife). The dramatic waterfall rescue near the end
is performed by Buster himself.

Sherlock Jr. (1924)
A projectionist is studying to be a detective and is in love with a young lady.
When he proposes her, his rival steals the chain watch of her father and
incriminates him. The disappointed young projectionist returns to his job and
while projecting the film, he dreams on being the detective of the story.
Meanwhile, the girl finds the truth and acquits the guilty of the projectionist to
her father.