I really don't know anything about film cameras, which type of film should I get the reversal or the negative?
Both are different and offer different options.
Negative film is a camera film that you shoot, send
to the lad and they develop it and make a print for
you to edit or run in a projector. You never project
the camera negative. Reversal film is a positive film
that you shoot, send to the lab and they develop it
and you can project it or edit it.
The type you "should" use depends on many factors.
For now, you can use negative film. The lab can develop
it and then transfer it directly to a digital copy - tape or
hard drive or movie file. If you have a projector and want
to project the film right away you should shoot reversal film.
Either way you now have a dozen different choices of
film stock with different ratings for exposure. Shooting
film is very, very different than shooting video. The learning
curve is MUCH harder.
You're going to have a lot of fun (and many mistakes) when
moving over to film.