[US]AI trailers for fantasy (or other?) series on instagram, then direct you to download some app?

So I was slightly interested since the video was obviously made by AI, but the story at least seemed to be written by someone. The idea of a single person writing a story they could never afford to make, then using AI to create it, even if it was a little awkward, made me want to check it out. It directs you to download some app, which I obviously wouldn’t and didn’t trust. I guess I’m wondering how many others have seen this/if it’s common, or just my LOTR-filled algorithm, and if it is indeed a scam or trying to deliver malware. I assume it is something nefarious.

I suppose if I want to look into what the ad purported to be, I could probably find stuff like that on YouTube somewhere