Satan Junior(1919)

Famous playwright Paul Worden decamps to a country bungalow to work on a new play, rehearsing with his leading lady, Marjorie Sinclair, who is staying nearby. Going riding one day to relax, Paul rescues his neighbor, teenager Diana Ardway when her horse runs wild. The pair clash initially, as she does with Marjorie, but after a series of misunderstandings true love triumphs.