Underwater cultural heritage refers to all traces of human existence having a cultural, historical or archaeological character, which have been partially or totally under water, periodically or continuously, for at least 100 years.

UNESCO: MEDIA SERVICES

Layered over the historical fiction is a sci-fi element: The main character is a modern-day barman, Desmond Miles, who is forced to travel through time to relive the story of his ancestors and collect artefacts.

BBC: Michael Fassbender

He said casting historical and political figures, who are known to the audience, is different from putting a face to a character from a novel.

CNN: 'Hunger Games' and Hollywood's racial casting issue