There's a wonderfully ironic scene in the movie Atonement.
English troops are about to be sent to France —to their eventual Dunkirk— in the opening days of World War II. Robbie (James McAvoy), recently paroled in return for military service, runs after a bus carrying Cecilia (Keira Knightley).
On the rear of the bus is this Guinness advert:
Enough said!
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