Acting phenomena

[Yamahahaha]

Just wondered whether anyone else has noticed any of these (bad) acting phenomena:

1. The actor showing their reaction before the person he/she is meant to be reacting to has uttered the relevant part of the dialogue;

2. The actor giving the impression that they don't have a full understanding of whatever it is their character is talking about (for example by mispronouncing key words or putting word stresses in the wrong place);

3. Actors who always seem to play parts where they're portrayed as being hugely more intellectually capable than those around them (viz Suranne Jones, Alex Walkinshaw, Heather Peace) but who don't come across as actually having that mental capacity;

4. The lines being delivered in such as a stilted way that you can almost see the script they're being read from.

Nobody?

Word stressors in the wrong place are my pet hate, it seems to happen a fair bit even when the acting is otherwise good.

I always wonder - does the director simply not notice?

Also grammar errors in the script; does no-one notice those either? (NB I don't mean when the character is clearly speaking a dialect, I mean things like misuse of "myself".)

(2) is pretty ubiquitous in a lot of ‘sciency’ plots. Sure, they’re not going to really understand what they’re talking about but surely they could get a scientifically literate person to check/coach them?

Actors who always seem to play parts where they're portrayed as being hugely more intellectually capable than those around them (viz Suranne Jones, Alex Walkinshaw, Heather Peace) but who don't come across as actually having that mental capacity

Wow

Ok, maybe "mental capacity" was a bit harsher than I meant, but when actors mispronounce words related to things their character is supposed to know about and/or when they spend the whole of every drama they're in making smug expressions and talking with a supercilious tone to all the other characters because they think they're so much cleverer, it doesn't look like they have a lot of range and I just don't find it believable that they're as senior/intellectually astute as their role is supposed to be.

Plenty of highly intelligent people mispronounce words, for all sorts of reasons

I remember Sally Webster pronouncing avocado as “uh-VOH-cuh-DOH” in Corrie once. It made me irrationally annoyed.

True, but if it's something their character should know about you'd expect someone would make sure they pronounce it correctly.

I assume she wasn't doing it in an ironic Nigella-esque "meecrowavay" way?

I presume not.