Actually, it really depends what you are looking for, you can't side both ways. If you are good in film, then you are good in it. You can't mix both, actually... you can, but you wont go too far ahead.
I have chosen to be and work as a commercial photographer, so everything I shoot has a reason for my future and career. But since you prefer Leica, and by means a M6 doesn't come cheap, so I am pretty sure you would love to work with film rather then digital. Plus, films are more classic and more over towards journalism. Which is totally different from commercials and the digital edge.