In the cold open, the squad is listing their favorite cop movies. Terry mentions
François Truffaut's Breathless.
Jean-Luc Godard made
Breathless (1960) (whose US title was "Breathless"), although, to be fair, Truffaut did write the story.
Some people, not erroneously, regard the originator of a story to be the person to whom the story belongs. Being that Truffaut wrote the story, it is "Truffaut's Breathless." This is an indication that the person speaking has a high regard for the writer. The writer is the originator and the director is the facilitator. Either one is correct, but neither one is wrong. While there may be an argument as to the difference between the written word and the film interpretation, the reference does not specify how the speaker feels regarding one or the other, and thus cannot be interpreted as specifically one way and deemed a mistake, i.e. that the writer made the film; additionally, the mentioning of the film/story and it's "owner" is a matter of interpretation and therefore cannot be regarded as a "factual" thing, mistake or not.
This is all, however, irrelevant. A reference is made to this scene later in
The Party (2014), where Terry is shown debating the points above with intelligentsia. Rather than a goof, it's a character error, or perhaps a character point of contention.
