I love how Arcane utilizes the meta language of film and digital media to convey its story.
The most obvious example of this is Jinx’s scratchy hallucinations. This is an exceptionally old film technique where you literally scratch the emulsion off of the film stock frame by frame. When done correctly this results in these sharp jagged gaps in the film that light shines through, resulting in this scratchy inconsistent effect.
So whenever Jinx is having a psychotic moment, the screen takes on the qualities of film stock and becomes irregular and out of focus, almost as if whoever was scratching those lines literally took the film out of the camera, scratch it, and then is trying to re-insert it back into the shot.
There are other meta-like moments in Arcane too. In season 2 when Vi punches the jaw guy in the pit fighter scene, her punch is SO STRONG that it literally dislodges the film reel briefly. Which is hilarious to me!
But the most interesting thing about this use of meta film language to tell the story is when the Anomaly comes into play. We first get glimpses of this when Jayce is walking through the storm right before exiting into the clearing at the top of the hexgate.
Instead of scratched film and other physical media tricks, the screen starts to… glitch. Like a faulty LCD TV monitor or a bad digital broadcast signal.
We never see this effect around any other parts of the show. ONLY around the anomaly and other moments where the Arcane is coming through.
And I think the reason they do this is because it makes the Arcane feel other worldly. Up into now all the visual effects and subtle tricks have been based on physical media. Film scratches, out of focus reels, dirt on the film stock, noticeable film splicing, projection issues, etc. It’s always been quirks of physical media.
But the Arcane is different. It’s not of this world. It’s MAGIC. So they switch to using noticeable digital effects when the Arcane starts acting up. Screen tearing. Streaming glitches. Color blocks and signal loss.
I just think that’s really cool. They could’ve just kept using film language to tell the story, but they use our familiarity with film language and start mixing it up to convey the magical other worldly nature of the Arcane. How cool is that?