I get why the biopic has become the most despised genre around, but honestly, I'd rather watch a good straight A-to-Z biopic than these wishy-washy, impressionistic biopics that are just as superficial and which, due to their leniant ways with chronology, never really allow a proper narrative to set in. It doesn't help that this combines both the clichés of the addiction drama and the clichés of the recovery drama.
Originally, Robin Williams was going to play Callahan, and that might've been a straight ticket to Schmaltzville, at least it would've actually committed to something. Phoenix comes across as needy in this, Mara's wasted, Black gets one effective scene, but the real star is Jonah Hill in his best dramatic work yet. Still, it only made me wish this film was about him.
Also, if you're gonna cast Udo Kier, Kim Gordon and Beth Ditto in a movie together, it'd better be a Face/Off-reboot.