I see that the 3 Act structure can be applied over almost any story, from Hamlet to Mulholland Drive, from The Matrix to Rocky. Story structures like 3 Acts, or 4-5 Acts, always feature a Character Arc and a series of plot turns (i.e. Turning Points) which make the story move on, proceeding from inciting incident, to temporary success, to climax and finale.
But I find it hard to detect these elements in movies like Pulp Fiction, Shimmer Lake, Memento, which proceeds back and forth in narration, and thus seem to elude the typical steps of a story. For example, how can something be an inciting incident if it's shown at the end of a movie? How can it be a climax of the hero's journey, if it is shown at the beginning?
The question is: how can you insert the Plot Key Points in a story which is not narrated linearly?
NB please retain from answering by bashing the 3-act structure as wrong / fad / old / cliche - that is not the core of the question. Thanks.