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             The Warrior Strain 
            (1919) England 
            B&W : Four reels 
            Directed by F. Martin Thornton 
            Cast: Sydney Wood [Lord Billy], H. Agar Lyons [Sir William Halsford], J. Edwards Barker [Baron Housen], William Parry [Stookes], Prince of Wales (Duke of Windsor) [himself], Evelyn Boucher 
            Harma Photoplays production; distributed by Harma Photoplays. / Scenario by F. Martin Thornton. Cinematography by Phil Ross. / Released March 1919. / Standard 35mm spherical 1.33:1 format. 
            Drama. 
            Survival status: Print exists. 
            Current rights holder: Public domain [USA]. 
            Listing updated: 14 August 2025. 
            References: Website-IMDb. 
            Home video: DVD. 
            
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