[qbrass]

The events in color are reverse-order and take place after the shooting of Jimmy. The events in black-and-white are in-order and take place before the shooting.

The movie interleaves them so you have a post-shooting event then a pre-shooting event until you get to the end where the shooting happens then it leads to the exposition.

[arethuza]

That sounds similar to the structure of the Culture novel "Use of Weapons":

https://en.wikipedia.org/wiki/Use_of_Weapons

[DeepRote]

I was going for just the overview