As someone else as mentioned, although technically not a "movie", Band of Brothers has to be up there as one of the best movies/TV show about WW2.
Das Boot for the gritty realism of lives under the water.
For something entertaining and enjoyable to watch, Jojo Rabbit, Escape to Victory and 1941 are up amongst the ones to watch.
Also enjoyed Escape from Athena, but that's probably more to do with looking at some of that amazing countryside of Greece of how it used to be, compared to all that high rise crap and bollocks the Greek Islands have now become!