Happy Friday! It’s been a minute since I participated in an LTB post! My poor brain couldn’t cope with it while writing my university reports.
Let’s Talk Bookish is a weekly bookish discussion meme created by Rukky @Eternity Books and co-hosted by Aria @Book Nook Bits and Dini @DiniPandaReads. Each Friday, bloggers will write posts about a particular topic and share on their blog.

Casting in book-to-film adaptations is always a big topic, and recently, the Wuthering Heights movie starring Margot Robbie and Jacob Elordi has been the source of a lot of controversy. Other 2026 high-profile adaptations include Project Hail Mary, out March 20th, and the new Hunger Games movie, set to release in the fall, both for which the casting has been received more positively.
What is most important to you with casting for book-to-film adaptations? Is the perfect hair color, or right height or eyes always a must, or is personality more important? When are book-accurate looks in casting most important?
I don’t watch a whole lot of films or tv shows these days, so I’m not up to speed on castings or controversies around them. That being said, the most important part of a casting for me personally is personality. Can the actor truly embody the character they are portraying? If yes, then generally I don’t care what they look like – the spirit of the character is more important to me.
There are exceptions, of course, hence why I said ‘generally’ above. Sometimes, there is a need for an actor to look a certain way so that the show/film doesn’t become unrealistic to the point that it breaks immersion. One example that comes to mind is the various Formula 1 films over the years. You absolutely don’t want anyone playing a driver who is 6ft tall and/or super muscly. It is just not something that would ever happen in real life, a little like jockeys on racehorses. It doesn’t matter if the actor has the perfect personality, it is just too unrealistic to have a super tall person crammed into a tiny Formula 1 car cockpit.
I know this isn’t a bookish example, but it’s the one I find best describes what I mean. Other than immersion-breaking things like the above, I genuinely don’t care what an actor looks like in a film.
What are your favourite—and least favourite—book-to-film adaptations when it comes to casting?
This will no doubt be a popular answer to this question, but Ryan Gosling was the perfect Grace in Project Hail Mary. He truly embodied the character, and it felt like the whole thing was made for him!
Some other favourite castings of mine would be Logan Lerman as Charlie in The Perks of Being a Wallflower. He captured Charlie so well, all his emotions and I don’t think anyone else could have done it better.
Basically, the entire cast of Lord of the Rings is on the list, but in particular I thought they nailed it with Sean Aston as Samwise. I would almost say he is more Sam than book Sam!
Those are all the ones I can think of off the top of my head. As I said, and as you can probably tell from this rather dated list (lol), I don’t watch many films!


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