Once Upon a Time in the West

Mortal woman's (Cardinale) train is sidetracked into last act of Ragnarok* and she witness the Twilight of the Gods. A terrifying Frost Giant (Fonda) destroys men at will even as he wrestles with Odin (Robards) and Thor (Bronson). Set pieces (80% of the running time) comprise a master class in directorial clarity.

*I submit that Morricone's guitar melody as heard in the scene behind the farmhouse is the exact sound of the Rainbow Bridge being shattered.