We are having a 3 hour open house this Sunday and the Realtor wants a movie playing during it. Not to show off the equipment, so it doesn't need to be a great audio mix or anything, but it needs to be family friendly and long. I was thinking one of the Lord of the Rings movies in extended edition, but they are two discs and nobody will be there to swap discs. I have the ability to play DVDs, HD-DVDs, and Blu-Rays. Any ideas?