I must say that I found Star Wars III quite boring. Just endless battles and duels punctuated with Lucas's trademark dialogue. Even the visuals become too little by trying to be too much. But it would have been incredibly rude to say this to certain close blood relatives who live for the saga.
As for the ostensible Bush references, a reviewer somewhere noted that this isn't quite the right movie to criticize people for seeing things in black and white. But it would be a kick if we learned (a la Palpatine) that Bush actually is also Osama Bin Laden.