I picked up a copy of this movie after seeing the other comment listed. After watching it, I can say without a doubt that this movie is an incredible waste of celluloid. Like the other reviewer, my jaw hit the floor. But it was not due to any comedic value, rather to the amazing wretchedness of this film. My friends and I were practically put into comas by the movies anesthetic powers. This is the type of movie that you either throw out the window of your moving car, or take out of the vcr and smash with a hammer.
Burgess Meredith wrote and directed this movie, as well as appearing in a small role. The film was made in 1970 when it was still considered appropriate for Caucasian actors to play Asian characters. Thus we have Burgess as an Asian character, complete with whispy mustache, and James Mason is the evil Mr. Go, with fake teeth, eye makeup, and - going against the character - a British accent. While Mason was British, the accent is ridiculous for the character. You get the feeling that Mason was trying to retain some dignity, and was fighting to avoid a stereotypical accent brought on by the fake teeth.
The movie is very tedious. You'll feel like you've been watching it for hours and hours. There's no real character development, and no one in the film is particularly likeable. Mr. Go is supposed to be very evil, yet we never see him do anything that makes us hate him. Nero, played by Jeff Bridges, was just as unlikeable as Mr. Go. Perhaps more so, as he is a deserter from the army, cheats on his girlfriend (and doesn't understand why she hasn't come home yet), takes money from Mr. Go in payment for having sex with a US agent - which is filmed in order to blackmail the agent into helping Mr. Go get a laser of some sort. Nero is supposed to be a writer and admires James Joyce, but we are never convinced that he is more than an untalented, drunk kid (Bridges looks very young).
Oh the pain.... the only reason you may want to see this movie is if you like one of the lead actors and are interested in seeing everything they have done. Otherwise, do yourself a favor and stay away from this movie. Oh yes, there are some really annoying songs that will get into your head, and not let you live in peace. "The yin and the yang...."