Can I download iTunes movies to an external drive, and then watch them via the drive on iPhone? - eviltoast

I have a lot of iTunes movies. I’d like to download them for offline use. Ideally I would have bought the 2tb iPhone, but that isn’t an option at the moment.

I would like to get an external storage drive, which could connect via USB C on the 15 pro max (could stay connected for the duration of the movie). I would download all my movies (I could download off a PC if necessary) and plug it into my phone so I could watch them.

I’m not really interested in ripping the DRM, or pirating anything. Is this possible? Is there some other solution I’m missing? I have about 1.5tb worth of iTunes movies.

I searched the forum but couldn’t find an answer specific to iPhone.

Thanks!