There is not as much shame as there used to be when I would admit to going into a movie thinking it was bad and it ends up being good (or vice versa).
I had more of a “mistaken identity” when watching May December. I’m not sure where I read it (or where I thought I did) but I went into the film thinking that the two main actresses, Natalie Portman and Julianne Moore, were a married couple. Regardless of how I came to this false conclusion, it is not the case the new film by Todd Haynes, but that does not at all take away from the true film, with one of the more unique and admittedly disturbing premises in recent memory.
Nothing else to say 