The Desert Fox (James Mason as Rommel). Cheekily excessive use of library footage by 20th Century Fox. I bet they hated it when colour films became de rigeur and they had to spring for SFX.
The accents are uniformly appalling, and Hitler is more like Chaplin's Great Dictator than the real one, but von Rundstedt is quite good.
The interesting thing about Rommel is that he has a sky-high reputation but it's not clear what he actually did to deserve it, except for some early actions in north Africa. By all accounts he was a good egg, and the rest of the German generals were a pretty dodgy bunch of Nazi sycophants, so maybe that's it.