Monsoon Wedding is a fantastic film
... but I couldn't find some really "leadershippy" lessons in it. I'm sure they're there, and I may spot them when I watch it again with the commentary on.
Anyway, I've written a non-leadership review of it, looking at how it was made and why I think it's so great. If you're interested, have a gander here.
On reflection, I'd say the making of the film itself is a lesson in leadership. Director Mira Nair pulled together a group of people she admired and who "knew what they were doing", including a director of photography who she calls her heart - they are that much in sync. It shows!