Movies of the 1960's were a lot of fun. Although there were plenty of serious films released during this decade, some of the most memorable 60's movies include titles like "The Absent Minded Professor," "My Fair Lady," and "The Parent Trap." Frank Sinatra movies peppered this decade, as did some of the best Jerry Lewis films and Dean Martin movies.
Certain 1960's videos from various television shows of the decade are now considered classics, such as the various Dick Van Dyke DVDs from his popular TV show. You can find these titles and more at most of the online DVD retailers, and some of the classic films of the 1960's can be found in bundle packages that feature several different movies of the same genre or with the dame artist.
For example, it isn't difficult to find several Frank Sinatra films in one DVD pack, just like you can buy many of the now-infamous beach party movies of the 1960's as collections in one fell swoop instead of needing to buy each title individually. Some movies from the 1960's have been re-released after having been digitally re-mastered, so if you don't like the idea of editors toying with the original look of a film then look for versions of the original which have not been changed at all.