It depends on my personal interest on what's on the table. I've found myself unable to go on for long with shows that fail to catch my eye; the same could be said by any movie. But if either does, it won't take me long to binge that show series or movie franchise down to the last one.

Movies. I prefer contained plots where I know there will be a conclusion, rather than be once again disappointed by a streaming service cancelling a series once it's getting good. Kaos, for example. Season 01 was only the set up for the kaos that's to reign above Zues' hubris, only for Netflix to abandon it. Aggregeuous.

I used to be a bigger movie person, although nowadays I don't really like film and it's easier for me to keep up with a series. I also watch lots of documentaries, and lately I've been really liking documentaries that are split into episodes! 'Docuseries', they call them here...

shows

Shows, easier for me to consume and remember than movies for whatever reason, usually I have to rewatch or refresh my memory on a movie to be able to remember it well