Search for lost Russian fliers

According to the original title screen of this film, this clip shows Arctic explorers Sir Hubert Wilkins and Lincoln Ellsworth reaching Fort Smith (Canada) to refuel during a search for lost Russian fliers in 1937. The airplane in this clip is a twin-engine flying boat, and the lost Russian fliers are likely a reference to Soviet pilot Sigizmund Levanevsky and crew, who disappeared while attempting to fly to New York from Moscow in August, 1937. Details in the title screen (including the date) may be inaccu