While I don’t think I can expand much upon it since I haven’t seen the films it references, I think this Guardian piece is definitely worth a read. Science fiction, it argues, is getting ‘serious’. That is, there is a wave of new films about time travel which go to some effort to engage with the philosophical ideas underpinning the notion. We therefore see things such as characters trying to get to grips with the grandfather paradox, and referencing thinkers like Nietzsche. As the article itself says, that sort of stuff can get rather heavy and off-putting pretty quickly, but I think it’s great to see the return of this kind of cerebral sci-fi, unafraid to play with difficult ideas and stretch audiences a bit. These days, there’s so much action-based, comic-book–derived dross saturating the genre, I think something a bit heavier would be quite welcome.