I drew a deep breath on the blackface front as soon as I heard that it was being done as satire -- there was this horrible moment when the movie was first mentioned to me when I thought Hollywood was dead-seriously casting a white actor in blackface to play a black guy (i.e. thought Ben Stiller et all were actually doing in all seriousness what the fictional film crew in the movie are doing) and all I could think was "WTF, OMG, why?"

the "preview" did not make it look like a good movie by any stretch of the imagination

I'm pretty much envisioning Dante's Cove (http://www.amazon.com/Dantes-Cove-Rena-Riffel/dp/B000FZEU1A) with monks (i.e. awesome for it's sheer, breathtaking, OTT soap opera badness).