http://www.rifftrax.com/worst-movies-of-all-time

Now I know these are voted on by the internets, so, it's going to be skewed.
But actually none of these are the worst movies.  They're just bad movies seen by enough people to be remembered.

I'm gonna go to imdb, and put in Michael Caine....there.
http://www.imdb.com/title/tt0073901/  The Wilby Conspiracy.

I'm gonna go out on a limb and say the Wilby Conspiracy is a worse movie than anything on that list.  I haven't seen it, but, That's Just It: It's a Michael Caine movie nobody every saw and nobody talks about.  Michael Caine and Sidney Poitier, down the memory hole. Wow.

There's also that Bruce Lee movie where he died in the middle, so, they filmed scenes with a Chinese guy in a body suit WEARING A BRUCE LEE PHOTOGRAPH on his head.  I kid you not.

Also Peter Lorre did a whole series of Mr. Moto movies.  In the novels, Mr. Moto is a straight-on Japanese spy killing anti-Japanese bandits all over the world (aka freedom fighters).  In the movies he's a white guy in bad makeup claiming to be a world police detective agent.  Those looked pretty bad.

There was another series about Charlie Chan, I saw 10 mins of that because that's all I could stand. Another white guy made up to look Asian, and the "plot" was he joined some "friends" who were having a "party" and the "joke" was that one guy drew pictures of the guests, and, he drew a slanteyed gop who was Guess Who?  They nearly peed laughing , Chan included.  Then they all went somewhere to have a drink, and I went somewhere to have a good movie.

But none of those were the worst movie, because the sound was in sync.