I was hoping to connect with Black Bear, and for a while I really was – I even found myself enjoying it – until about halfway through, when everything just fell apart remarkably quickly, like Kevin Spacey’s career did. Black Bear is structured in two sections; The Bear on the Road, and The Bear by the House (I'll refer to them as BB1 and BB2); both segments conclude with a sighting of the black bear, but each could have just as easily ended with a ‘Dead End’ sign. Set in a secluded lake house in the Adirondacks, Gabe (Christopher Abbott) and Blair (Sarah Gadon) host Allison (Aubrey Plaza), an aspiring filmmaker. These characters, like many artists, are creative and smart, but also act immaturely and aggressively. Allison is a compulsive liar, Gabe is emotionally stunted and controlling, and Blair isn’t letting her pregnancy stop her from developing a drinking problem (the casting choices were perfect). Their exchanges are full of condescending hostility; it's simply enjoyable to observe. The dialogue manages to be both vulgar and intellectual—I particularly liked the use of “solipsistic”—but the biggest disservice to viewers comes in the form of a sudden shift —or transition, I suppose—that leads into BB2. The second portion is an overly complicated meta-narrative where there’s a movie inside the movie, but that inner film doesn't align with what we've seen so far, suggesting perhaps there’s another hypothetical film hidden somewhere within this conceptual mess. If BB1 felt like witnessing a disaster you couldn’t look away from, BB2 is simply a disaster. The only positive element carried over from the first half is the performances, which are likely even stronger—but that just makes me feel bad for the actors involved. Ultimately, what we have here feels like two versions of what was initially a promising concept, but it doesn’t add up to a complete film. Instead of reworking the material, the writer/director seems to have decided to present the same underdeveloped idea twice, failing each time to craft a satisfying resolution.

Source on TMDB