I could do with watching Birdman again. It is filmed like no other film, is cerebral without being complex (i.e. it weighs on the brain but dones't taxing it through convultions like, say, Interstellar, which is another fantastic movie), has a great cast and story, and tackles art, truth, fame, ego and validation. I'm not sure about the ending but you can't have everything.
****1/2 (an extra 1/2 for its uniqueness).