I have to take issue with "Moviefanatic", who objected to having no lower-cost, 'Sunrise'-only alternative to this set.
I could see his point if they were charging a premium price for the set, but they're not. The cost of this 4-film set is less, for example, than for the 1-disk Criterion edition of 'The Passion of Joan of Arc', or the Kino or Image Entertainment versions of 'Intolerance'. (To say nothing of other silent masterpieces, like 'The Crowd', which have never received DVD release.)
If it helps, you can think of the other three films as bonus filler items. They are all worthy pictures. 'How Green Was My Valley' is often called sentimental, and in some ways it is, but it is a dark, sad movie, and one of Ford's best. 'Gentleman's Agreement' is the weakest film here, a sincere and well-intentioned attack on American anti-Semitism, but rather talky and slow. If it doesn't represent Kazan's best work, it still stands up as historically important. 'All About Eve' was for years the film with the most Oscar nominations (14); it too is talky, but with dialogue this memorable, talky is in this case a good thing.
But the big attraction of this set is 'Sunrise'. Technically, you could argue 'Sunrise' is out of place here, as is not exactly a "Best Picture" Oscar-winner. In the first year of the Academy Awards, 1927-28, the award for "Best Production" was split between 'Wings' and 'The Last Command', while 'Sunrise' got the award -- issued that year only -- for "Best Artistic Quality of Production", beating out 'The Crowd' and 'Chang: A Drama of the Wilderness'. (Incidentally, none of those three films were nominated for "Best Production", and 'The Crowd' would have taken the Artistic Quality award if not for an all-night fillibuster by L.B. Mayer.) But this is trivia; both 'Sunrise' and 'The Crowd' are legitimate masterpieces.
I had never heard of 'Chang', but it is available on DVD, from Image Entertainment -- for about the same price as this 4-disk set.
Bottom line: This set features three great movies, one of which is otherwise unavailable, and one good one. The set is a terrific bargain. Case closed; buy it.