Caste is a 1930 British drama film directed by Campbell Gullan and starring Hermione Baddeley, Nora Swinburne and Alan Napier.

[1] Michael Powell worked on the screenplay and (uncredited) was involved with the technical side of direction.

[2] Film historian Geoff Brown writes, "most of the film’s enlivening spice comes from the jolting surprises of tone and manner as Gullan’s cast and Powell’s visuals glide or lurch through a scenario pleasingly punctured with camera trackings, lively spots of audiovisual montage and dramatically piquant closeups.

(Watch for the carefully judged shots of hands delivering and receiving a crucial telegram regarding D’Alroy’s fate.

)...the film is not a fossil; it is a lively embryo, and the first important step towards Powell’s future.