Here is a list of movies with a poly or open/honest multiple-relationship theme somewhere in there but NOT movies about cheating (unless the cheating leads to a more honest relationship style).
For the full set of guidelines for which movies make it to the list and which ones don't, visit
http://joreth.livejournal.com/259000.html
These are movies I have personally watched and verified for the appropriate criteria. There may be more movies that fit the criteria that I haven't seen. To make or see poly movie suggestions that I have not reviewed yet visit
http://www.listal.com/list/polyish-movies-to-watch
Most of these movies can be found on Netflix and I have reviewed many of these (and some others that didn't make the cut) at
my LiveJournal Movie Review.
However, the movie *does* fit the criteria for the list, so it should be included. It shows a working triad where everyone is happy, and the relationship didn't break up just because there were multiple people.
Pourquoi pas! (Why Not!)
Splendor