It's a shame that this story is being told through such a bland script. It's a slow-burn that takes its time in revealing details and building upon itself, but maybe it takes too long in doing so. By the time the credits roll, there's no lasting sense of impact that should accompany this story. It's sad to see the talent of Adrien Brody being wasted in such an unfulfilling script: Brody is clearly giving it his all, and acting-wise, he's certainly not bad, but a stronger writer could've elevated his performance, and the film overall, into something much stronger.
The other side of the story, the George Reeves half of the film, is more solid. Ben Affleck's portrayal of Reeves is quite powerful: not only does he bring a sense of warmth to the few scenes in which he actually plays Superman, he shows the more tragic, troubled side of the struggling actor. Diane Lane, who has many powerful scenes of her own, and Bob Hoskins also feature prominently in this half, and are both excellent.
The contrast in quality between the two halves is detrimental to the overall experience, which is a shame because there's a lot of good hidden within Hollywoodland. For a directorial debut from Allen Coulter, it's quite a competently filmed and produced movie, and with a stronger writer behind it, it could've become something truly special. As it stands, it's a mostly unimpressive look at the Golden Age of Hollywood and what comes with becoming a star that'll likely hold your attention for two hours, if nothing else.