The ship used for the film was the TEIGAN, originally named ROTTERDAM 111 and launched in 1897.

After filming the ship was renamed DWINSK.

In 1917 The DWINSK came under British control under The Cunard Shipping Copmpany.

On the 18th June 1918 the lifeboats were used for real when she was sunk by German U Boat U 151


Cool trivia, thanks!