There's a mod for it called Movie Battles 2
I'm not sure how active it is at the moment - but 5 years ago there were 6+ full servers, and 10-20 with 6-8 people at almost all times.
Essentially it's Counterstrike round-based system, two teams, and you choose between several different classes (Such as Jedi/Sith, ARC trooper, Droideka, Bounty hunter etc. etc.) who all have their own set of skills and your goal is to do a certain objective. (for example, the most played map is the palace assault from the end of the phantom menance - your goal as the good guys is to get to the throne room, and you can hack a side objective to open up more paths to it - while your objective as the bad guys is to stop them)
It also pretty much revamps all the damage on all the weapons, along with a total rework of the saber system (it's a better idea to actually move as little as possible now when dueling, it has a block feature now / you can only deflect a certain amount of shots before you get hit by the other shots), as well as a rework of the force system so it's possible to out play a jedi/sith as a gunner class. In fact, unless you're great at Jedi/Sith you're probably better off playing as a gunner.
What's great about it is the fact that every life counts, and because of the different abilities/skillsets of the different classes you can pull some amazing things off.
Otherwise if you have some friends, and you want a in-depth (perhaps even a bit too complicated) saber fighting system, you can take a look at OJP (Open Jedi Project) - Movie Battles essentially took an old version of OJP's saber fighting system. Bring a friend because even at its peak OJP was rarely played.
The main appeal is how much you can do inside the OJP saber fighting system. The main appeal, to me at least, is that it's possible to attack and blcok at the same time - in fact, that's expected. Missing around 4-6 blocks in a row (you can change how many hits) will kill you. You can also do things like disarm and knock someone down on his feet rather than going for brute force. This system emphasizes being unpredictable and at the same time requires a great deal of mechanical skill.
Here's a short guide on the fighting system in OJP
http://z7.invisionfree.com/The_Rpg_Gamers/ar/t231.htm
(just read the quick start guide, the 8 guidelines - after you get them down you can read the entire manual afterwards - the most important thing you want to learn is the parry - if you manage to do a parry right, an animation of your opponent's lightsaber recoiling will play)
Here are the links ;p
http://www.moviebattles.com/
http://jediknight3.filefront.com/fil...Enhanced;91118