The well-dressed Viggo Mortensen impressing Kirsten Dunst with knowledge from the Blue Guide, which you can see him holding in the opening scene of Two Faces of January (2014) (YouTube clip below). The film is based on Patricia Highsmith’s 1964 novel of the same name.

King Aegeus’s son Theseus mistakenly used black sails on his victorious return from slaying the minotaur on Crete. Taking this as a sign that Theseus had died, King Aegeus flung himself to his death in the sea in grief. From which the Aegean took its name. (From Blue Guide Greece).

“It was from here” proclaims Mortensen’s character on the acropolis in Athens, “King Aegeus looked out to sea waiting for his son to return. Another victim of the cruel tricks gods play on men”:

(For some great images of the Blue Guide on location, ably supported by Mortensen and Dunst, see Aristidis Vafeiadakis’ stills on Alamy.)

Blue Guides to the classical world include:
– Sites of Antiquity: from Ancient Egypt to the Fall of Rome 50 Sites that Explain the Classical World,
– Blue Guide Rome, Blue Guide Sicily and numerous other Italian titles,
– Blue Guide Greece the Mainland, Blue Guide the Aegean Islands and Blue Guide Crete.