I've tried this a few times and it released the shutter. I need to sit down without a roll of film in it and see if I can master that.
From what I've heard, it doesn't work with every single one, probably because of individual adjustments. I've never tried it on one and had it not work, though. It's really easy once you get the hang of it.
I do use a digital device in my photographic pursuits when necessary.
When someone rags on me for using film, I use a middle digit, upraised.