Kidnapped (2005)

15-year-old Davie Balfour is poised to receive a vast inheritance when he's lured onto a cargo ship, knocked unconscious, and kidnapped by his malevolent uncle Ebenezer, who devises a scheme to sell him into slavery. But Davie's unforeseen rescue at the hands of a Scottish rogue, Alan Breck, leaves them racing across the Scottish moors, with English bounty hunters in hot pursuit.

Unfortunately the movie Kidnapped is not yet available on HBO Max.