Hubby and I just watched the movie Hump Day and it was fantastic!
It briefly touches on the idea of poly, but is mostly about the idea that human sexuality is not fixed, but flexible and fluid.
The movie was unscripted and has such a raw, real, genuine feel it blew us both away.
Best movie I've seen in years.
The movie Vicky Cristina Barcelona has poly in it, but it also has horrible, annoying narration, and the end sort of fall flat.