Porn for Couples

Me and my Wife are looking at watching a porn film together for the first time with the idea of making our own home movie.
I'm after ideas for a film we can watch together, I'm after something that is not over the top, no abuse stuff like that. Just something light hearted we can watch together and have a laugh and a bit of fun.
Plus where do you buy dvds from? Internet is a minefield

If you're looking for sexy and a bit of a laugh then maybe try some of the parody type films . We watched the star wars parody ,it was hilarious and there's still plenty of sex too ....nothing too over the top though .
There's loads to choose from , not too sure where you could buy them though surely there's somewhere on the internet that sells them .