Jude Law: Submerged in new role as captain
In his latest movie, Jude Law plays a submarine captain whose crew consists of Russian and British men.
They are at war with each other, trying to salvage Nazi gold from a sunken U-boat.
He told the BBC's Andrew Marr about the film, Black Sea, and how the makers of it acquired a submarine in the first place.
UK viewers can watch the Andrew Marr Show in full for seven days