Was deciding between two films that were done in an early widescreen format that was tried briefly in the late 1920s and early 1930s, and only a handful of those large-format films actually survive. Both are from 1930. One is The Bat Whispers, which was a direct inspiration for the creation of Batman, but I think this one is the better-looking one (and has been released in HD), plus it has John Wayne in his very first starring role, I believe:

The Big Trail (1930)
Raoul Walsh

Watch trailer: