I can only figure ace director Minelli got this movie on assignment. Because however much drama is inherent in the screenplay, it gets drained by an uncharacteristically flat visual style. There are no close-ups to emphasize emotion. Instead, the camera remains impersonal regardless what's happening with the characters. Plus the actors basically walk through their parts, excepting a fiery Gish and Grahame. Then too, the scenes simply follow one another without heightening the various dramatic impacts. The overall result is to disengage the viewer from what's on screen, creating what amounts to a limp drama.
As I recall, the movie got promoted on the basis of its marquee cast, including the classic Lillian Gish making her first appearance in a number of years. The large number of names, of course, required the script be extended so that each star would get an appropriate amount of screen time. This results in a number of subplots and an over-stretched 2-hour-plus runtime, way more than the slender who's-going-to decide-the-draperies premise can sustain.
However, unlike most reviewers, I don't object to the running issue of the curtains, ridiculous as it sometimes seems. After all, this is an institution for troubled people including the staff, so they may well obsess over something seemingly as minor as a decoration. Then too, who makes the decision serves as a catalyst for bringing out the various unresolved conflicts among the residents. I just wish the surrounding drama was better written, acted, and directed. Certainly, the talent was there to do just that. Instead we're left with a film that remains obscure for good reason.