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Not being able to implement his invention in his home country, engineer Arrowsmith, the author of the patent for ore flotation, goes to the USSR to work at one of the flotation plants, where he soon learns that a group of Soviet engineers is conducting similar work.
as Dick Arrowsmith
as Layons
as Samuel Wolfe
as Engineer Nikitin
as Sazonov
as Bill Steer
as Rector (uncredited)
as Comrade Olga
as Gostev
as Bistayev
as Gaydar
as Garreth
as Rakitin
as Ethel
as Professor (uncredited)
as Felice (uncredited)
as John's wife
as Laboratory worker (uncredited)
as Arrowsmith's guest
as Arrowsmith's guest
as The reporter (uncredited)
as The worker (uncredited)
as The provocator (uncredited)