But the design is so classic that it's super easy to find without resorting to dropping major cash for the Tom Ford original!
We found two equally affordable options that are super similar to Kate's dress.
Check 'em out ...AFTER THE JUMP!!!
She loves her Miu Miu sunnies!
For the big event the W.E. director wore a custom 40s-inspired georgette long-sleeve gown with a fully beaded skirt and metal detailing. The dress was designed by Gucci of course.
It would have been nice to see Madonna in color again, but we can deal.
[Image via Getty Images.]