Really depends on the movie for me. If it's something faster paced, has characters or themes are interesting or is visually very appealing I have no problem.
Being high helps too lol, though then I sometimes still get distracted if I suddenly wanna listen to some music
I've struggled with putting my thoughts into words almost my whole life. Only in the last 2-3 years I started to actually get better (I'm 28 soon).
What could help is
If you managed to find words for a thought write them down somewhere (I used phone notes for this)
Not sure about this one, but maybe reading books out loud might help (doesn't have to be with anyone present)
I did both of these occasionally, but I think what actually helped me here was LSD, which I don't recommend unless you've properly researched the (side-) effects, are aware of all the risks and have trusted source to get it from.
I don't think I've ever met a genuinely smart person that wasn't kind. Most insufferable people I've met weren't outstandingly smart. But maybe that's just the bubble I live in and a little bit of luck.
Or I'm just very tolerant and have a high ceiling for what I'd describe as insufferable.
I haven't conviced myself of anything