I watched this right before I saw Suicide Squad so it was interesting to see Scott Eastwood in that. Skurj just posted him in his Halloween costume and asked why not a western for him. Well, this was it.
Diablo appears on the surface to be a straight forward rescue western (The Searchers being an archetypal example). Eastwood broods his way through the first half which doesn’t help at all a bogged down narrative. Walter Coggins makes as appearance as a villainous character who for some reason tries to impede Eastwood’s character from his rescue. The plot meanders and tries to make a big reveal at the end. The “twist” at the end has been so telegraphed throughout the picture though that it hardly feels like a surprise at all.
There is some gorgeous drone footage and overall the picture has a pretty good look. It is just too uneven to recommend.