So feel free to add to my original list
Black Jack Rackham wrote:The Borgias - it was on Showtime and caught an untimely death, but if you want to know the type of game I'm planning for our third campaign, you should be watching this...
Anonymous - an alternate version of who actually wrote Shakespeare's plays (and a rebellion to boot)
Black Death - I've mentioned this one here and there, a young priest takes a group of Inquisitors to a small, isolated village that has mysteriously avoided the surrounding plague.
The Eagle - Completely wrong time period I know, but a compelling story and lots of good moments to add to your thinking
Kingdom of Heaven - again completely wrong time period. This one gets unfairly dinged like Cutthroat Island. Good historical ideas for your campaign.
Ladyhawke - More fantasy than swashbuckly, but you can't tell me after watching it that the story isn't screaming 7th Sea.
On Guard - This has been mentioned on and off. I like this movie, I like everything about it SAVE the end. If you can stop it before the last few minutes, you'll love it. And terrific swordfighting.
Ravenous - Great story that's perfect for any Eisen campaign.
Rob Roy - But wait a sec, Mark. You say, Rob Roy's got to be on the original list! You're cheating! Nope sorry, for some reason they ignored this flick AND its near-legendary final fight scene.
Stardust - wrong era, wrong world, wrong everything (including a dash of steampunk) but I can't think of a story that is more pure swashbuckling than this. And Neil Gaiman wrote it BONUS!
Treasure Island - This is the original of course, and for some reason was left off the 7th Sea inspiration list. That's a travesty.
Valhalla Rising - While we Americans turn away from swashbuckling (or historical fantasy if you prefer) our neighbors across the pond are hard at work giving us some fun romps (I think with a little push this particular one could take a spot near Brotherhood of the Wolf).