This may be great for your sister Martha taking pictures of her kids birthday party because she's almost guaranteed to get useable prints. But it will get in our way. Slides are the original film in your camera. If you get it wrong they won't compensate for you and fix it. If you get it right they won't compensate for you and mess it up.
Slide film is available with very fine grain.
Without good technique the best equipment and film will be a waste of money. Learn to look through the view fiender to see what the camera will see. Finding these problems before you press the shutter will save money in otherwise good pictures that wind up in the trash. Setting the main light to illuminate the scene from a low angle will generally produce dramatic lighting and ahadows. Take care to avoid shadows on backdrops.