How can I determine if a film camera is working properly?

To determine if a film camera is working properly, you can start by checking the battery, film advance mechanism, shutter speed, and focus accuracy. Test the camera with a roll of film to see if it properly exposes and advances the film. Additionally, inspect the lens for any scratches or damage that may affect image quality. If you encounter any issues, consider taking the camera to a professional for further evaluation and repair.