www.moviesunlimited.com/musite/default.asp? Is a site that offers one the chance to buy old movies, classics and also offers one a discount. They also have historical and war movies from the 1970s on sale and you can even sign up to receive an update by email.
There are a number of sites and local stores from where you can buy old movies. Some of the better known sites include Moviesunlimited, nostalgiafamilyvideo and at Amazon. Most of the sites offering such belong to local stores, which you will most commonly find listed in the local business directory.