Conventional wisdom would say so, wouldn't it?! But American audiences have gradually drifted away from nonconformist filmmakers like Lynch, Van Sant, Friedkin, Ferrara, etc. Most of their financing now comes from Europe. This gulf may not seem that wide thanks to the internet, where you'll see hundreds of reviews of a film like Inland Empire, but the fact of the matter remains that it was self-distributed by Lynch in the U.S., who had to travel around the country with a @#%$ cow to promote it. As for the conservative media, I think at this point even they've caught on that there are bigger things at stake here right now, politically. Other than perhaps another very violent movie about Jesus, just about any film could be released here currently and it won't draw much of a reaction. Moore's Sicko, which dealt with arguably the most pertinent domestic issue, came and went like most summer blockbusters. 

Bug did okay. It made about $7 million theatrically in the U.S. And ancillary revenue should be decent for a film like this.