Atlantic Ferry

Atlantic Ferry (alternate U.S. title: Sons of the Sea) is a 1941 British film directed by Walter Forde and starring Michael Redgrave and Valerie Hobson. It was made at Teddington Studios.
Premise.
In 1830s Liverpool, brothers Charles and David MacIver (Redgrave and Jones, respectively) set out to prove the worth of steamships by being the first to cross the Atlantic from Britain to the United States. Their first attempt, the "Gigantic", fails, but their second attempt, RMS "Britannia", succeeds.
Reception.
The film received neutral-to-negative reviews.
According to Warner Bros records it earned $87,000 domestically and $16,000 foreign.