I watched a good documentary on public television tonight called Anyone and Everyone. It focuses mostly on religious families with gay kids, including one (impressive) LDS family. I found the stories to be believable and very touching.
The film will be broadcast on public television stations around the US this month. See here for a schedule. Recommended, especially for families and friends.
(Another documentary is being recorded right now on my DVR.... It looks good, but I haven't seen it yet. It's called Inlaws and Outlaws. It tells the courtship stories of some gay and straight couples.)