ChainsawAsh said:

I know that The Professional is the cut US version of the movie. Never seen it. I believe it's around ~15 minutes that was cut?

Léon is the international version, with the ~15 minutes intact.

Léon: The Professional is the title on the DVD box of the US release of Léon, which is identical to the international version.

I'm asking what was cut from Léon (which I've seen and love) to make The Professional (which I haven't seen, and don't really plan to).

Though I guess I could just Google it...

A lot of what could be considered the sexual tension between She and Leon. And a bit of her training, and some of her jobs like the gum on the door. Then the scene where they are at the nice restaurant. It's been a long time since I've seen it though.

I enjoy the Long cut more, but if I was going to recommend it to family it would be the short version, because of the sexual tension.