Can you get antique camera film developed today?

If you want to shoot new film in a antique camera, Yes - you can get that developed.

If you have old film in a old camera, you can take it to a developer and have them try but there are no guarantees that you will get any images.

Undeveloped film has a shorter lifespan than developed film. It fades and discolors over time. Film that sits in a camera for 1 - 2 years should still be good. After 10 years you may still get an image, but expect serious fading. Past that, don't expect anything but don't let that stop you from trying.