Peter Patnaik’s review published on Letterboxd :
It's easy to say that this is more than a war film - it's mainly about romance and what we lose because of war or because we aren't true to each other or ourselves, but war exposes our flaws like maybe nothing else.
Brando is awful as a German, but wonderful as a tortured man without any purpose. Clift has a thousand yard stare even before he's seen war - this is post car accident and he looks like he's ready to die even when there's not any danger of that.
I guess it's not much like the novel - Dmytryk's version is his own - and this is more noir than war.