Answer:
It is an example of foreshadowing.
Step-by-step explanation:
Foreshadowing: It is a literary device in which the author or narrator of a story gives a warning or indication of what is to come next.
The first scene of the film was an image of wedding ring which foreshadows a wedding in future (in last scene of the film)
Anecdote is a very short and amusing story about some real life incident. Since, we don't fully know the story, whether all incidents in it are amusing and real life, so we can't call it an anecdote.
Flashback is an interruption in chronological sequence of the plot by an event or thought which took place in past. There is no such interruption in this given information, so it is not a flashback.
Hyperbole is an literary device in which author uses exaggerated ideas to emphasize some concept. And there is no such exaggeration in this piece of information.