If you're talking about the Entertainment Weekly poll, the Harry Potter movies were no. 10, I believe. Now, I enjoyed those films (especially no. 5) but any poll that puts them at number 10 and Lawrence of Arabia at no. 76 is not worth paying any attention to -- even if I agree with some of the rankings.
New book coming out about The Searchers in February.
Here is the link to its page on Amazon, you can read more about it there:
Also, an article by Glenn Frankel on visiting Monument Valley:
(The e-mail address at the end is outdated; he is now dean of the School of Journalism at the University of Texas-Austin)
Fake -- emphasis on FAKE -- but beautiful artwork for a Criterion Co. version of The Searchers.
Here's one also for Rio Bravo. (Again, it's a mock-up, not anything real.)
You can find them both (and other mock Criterion covers) at http://midmarauder.tumblr.com/tagged/fake+criterions/page/7
Peter Bogdanovich (director, The Last Picture Show and Ford scholar) just posted a blog column about The Searchers. Not sure it says anything all THAT new but it's still a good read.
Ford's films aren't supposed to be taken as a literal recreation of the Old West and ranching and sod-busting or what have you. He was a poet whose medium was film, and Monument Valley (and all the other locations he used) is the landscape that reflects his vision of humanity and its place in nature, and the emotional states of his characters. The Searchers is a portrait of an obsessed man who will stop at nothing in his quest, and Monument Valley with its starkness, its vastness, its startling enormous rock formations and its sheer implacability is the perfect place for Ethan Edwards' story to unfold.