Is this at all like The Prestige?

The plot is about two men who have a life long conflict, but the movie is about the nature of honor. It examines the concept of honor, its requirements, and the moral and ethical path that stems from ones decision to be a person of honor.

It's fascinating in that his shows how a man's dedication to honor grounds him in an ethical morality that makes him successful on every level, while simultaneously forcing him into actions which he believes are ridiculous and even disgusting, but which he cannot walk away from without violating his own nature.

The Duellists is a confict of honor and The Prestige is a confict of revenge but both concern obsession so thematically there can be said to be some resemblance. But the two filmmakers (Ridley Scott with the Duellists and Christpher Nolan with The Prestige) appoach to this theme is quite different. I'm acually in the process of writting an entry for my blog that discusses The Duellists and has a section that compares and contasts what is done differently in the two films. My blog is www.thediscerningfilmviewer.blogspot.com
I kind of busy right now so that entry probably won't be up for a week or so but by all means if you are a movie person read and comment on my older stuff. I'm trying real hard to get readship for the blog

The New Beverly Cinema in West Hollywood seems to think they are at least similar. They have it playing as a double feature June 19th-20th and they always pair movies based on some sort of theme or connection...

http://www.newbevcinema.com/calendar.cfm