At risk of starting a new thread of 'Least favourite and most irritating War Film in all of History', I'd go for ....'Cromwell'...
And at risk of another thread as well, which is 'Best War Film not made in English and with subtitles' I'd have to have 'War and Peace' - the epic Russian version...well, the hour about Borodino at least, most of the rest is a little...loooong!!
We should preserve this Ideas. My Vote for the badest and dumbest war movie goes to "Paeschendale" from 2008.