A big admirer of Cohen Brothers movies, I found "O Brother" (2000) straight down the middle of their quality and par for their course: neither the best nor the worst of their films. To call it as mash-up is no criticism but a statement of fact. You want Comedy? Crime? Action? Adventure? Period Drama? Musical? Preston Sturges? Homer (the Greek bard, not Simpson)? It's all here. The problem is that it doesn't hang together into much of a coherent story, of which the Brothers Cohen are more than capable. It's pretty much one darn thing after another, a problem the producers-writers-directors-editors ingeniously solved with "The Ballad of Buster Scruggs" (2018) by making each stand-alone segment a chapter in an imaginary book of tales of the old west.
The cast is sublime: not only Clooney, but also members of what has nearly become the Cohen Repertory Company: John Turturro, Tim Russell Blake, John Goodman, Holly Hunter, Charles Durning. Are they given enough to let their talents fully shine? I don't think so.
The look of the film: Marvelous, even on a small screen. For that we may thank the Cohens' go-to cinematographer, the brilliant Roger Deakins.
The sound of the film: Terrific. Under T. Bone Burnett's guidance no film since "Bonnie and Clyde" (1967) has done more to revitalize bluegrass country on the international stage.
The DVD extras: Meh. There's a music video, a short behind-the-scenes that functions as a sort of promo, and a very good but too brief (8 minute) look at how Deakins got the sepia-toned Depression era look that the Cohens were reaching for.
Bottom line: an entertaining film, but hardly the Cohens' best. Whether it will improve with age remains to be seen.