Oh, I forgot to mention the not good movies that I watched over and over again on VHS in my childhood.
Number one would be the 1959 version of Journey to the Center of the Earth where James Mason plays a Scotsman and doesn't even bother with an accent and Pat Boone also plays a Scotsman but gives up on the accent after about 10 minutes. The whole plot is moronic and the effects are terrible and I love every single minute of it. The only true compliment I can give it is that Bernard Herrmann's soundtrack is terrific.
Then there was the 1980 attempt that Disney made to appeal to college kids, Midnight Madness. It was a total flop and I love every single minute of it. FAGABEEFE!
Third would be an animated movie that was made in France and dubbed into English called The Secret of the Selenites. It was a Baron Munchausen film, but I'm guessing they thought Americans wouldn't know who that was, so they left his name out of the title. It has a terrible pop song in the beginning that is in the "so bad it's good" territory.