Das Boot was shot in German and dubbed in English (by the original cast!) for the Anglospheric theatrical releases.
There’s at least one movie where the Germans start out speaking in subtitled German and then through some plot contrivance (practicing for an espionage mission or something) agree amongst themselves to speak English. Another that I remember only vaguely uses the device of the English-speaking narrator essentially saying “You know what, just pretend they’re speaking German, okay?”
