Thandol span on the right, the gap between upper and lower EK. You're seeing Dun Morough to the south, Gilneas on the left (as a pseudo-island / peninsula), and greater Lordaeron on the top (including Arathi, Hillsbrad, etc; later Plaguelands). Water in the upper right corner is Darrowmere Lake, and Lordamere Lake to the left. The location the camera drops is completely irrelevant to much of the First War, since the Dark Portal was in the Black Morass / Blasted Lands.
For reference / in context:
http://vignette3.wikia.nocookie.net/...20110518020833
** NOTE: This area is relevant to the SECOND War. The movie is about the FIRST war, and as a result, really only involves Blasted Lands, Swamp of Sorrows, Redridge, Elwynn, Darkshire, Westfall, Deadwind Pass / Karazahn, and kinda-sorta-maybe Burning Steppes / Searing Gorge / Dun Morough (since there is an "Orcs in the Snow" shot, Ironforge, and I assume Blackrock Mountain will be at least briefly mentioned) -- Almost NONE of which are visible in that shot of EK.