I don’t know what is more upsetting, that I’m actually excited about a movie starring Ben Stiller and Jack Black (remember Envy?) or that it’s actually Robert Downey Jr. in blackface that’s provoking all this excitement. Fortunately — or maybe unfortunately — I’m not the only one that’s going ga ga over Downey’s racial transformation for Tropic Thunder. It began a couple weeks ago when this still, featuring Stiller, Black and a colorized Downey, made the rounds through the blogosphere. It turned out the actor’s appearance is part of a brilliant joke on method actors. Downey plays Kirk Lazarus, a multiple Oscar-winner who goes through a special skin-darkening procedure in order to play an African American sergeant during the Vietnam War. It’s mostly funny because you could almost imagine someone like Sean Penn doing this for real.

But is there danger of the joke becoming a bit too much during the whole movie? After all, it began as a mere sight gag with the still photo, then continued with the website, where Downey actually looks eerily identical to Blaxploitation star Fred Williamson. However, now it’s also an audio gag, complete with what must be referred to as blackvoice. Yay, racism is funny! Not that I’m knocking it; I do actually think Downey is absolutely hilarious here. And having Brandon T. Jackson there as an actual African American actor, acknowledging how ridiculously racist Lazarus is, makes it the potentially the best use of racism as comedy since Blazing Saddles (sorry Harold & Kumar Escape from Guantanamo Bay).

I wonder, though, if the joke, the blackface and Downey’s performance will all completely overshadow the rest of the actors. I guess, considering my lack of favor for either Stiller or Black, I should be more hopeful of that being the case than worried.

Tropic Thunder, written by actor Justin Theroux (Inland Empire) and Etan Cohen (Idiocracy) and directed by Stiller, arrives in theaters August 15.