Well there's intentional camp and then there's pure camp which is when they weren't trying to be campy. Dolls is a perfect example of the latter. Don't know if they've been mentioned, but...
Faster Pussy Cat, Kill! Kill! and pretty much anything by Russ Meyers.
John Waters...especially his early work
Douglas Sirk films. Most of your big-budget, wide-screen contemporary dramas from the mid to late 50's that came out of the studios are pretty pure camp.
Disaster films from the 1970's, especially The Towering Inferno and Airport '75.
The entire output of Ed Wood Jr., director of Plan 9 From Outer Space.
1960's and early 1970's Japanese horror films, especially monster films.
1950's Sci-Fi
The Rocky Horry Picture Show (definitely intended camp!)
Most if not all of Elizabeth Taylor's movies after and including Butterfield 8, especially from the late 60's through the mid 70's
TV movies from the 70's are usually excellent...and excellent camp.
Hitchcock's The Birds is great, but kinda campy.
Tommy Wiseau's The Room...awesome new contender for the camp crown...
and finally, Ben and Arthur, perhaps the worst gay movie ever made!
Oh, and Torch Song starring Joan Crawford. Has to be seen to be believed.
Most Pia Zadora films are just terrible, not campy. "Lonely Lady" though is definitely camp.
Early John Waters films are just gross- do you really want to see an elderly lady in a play pen with an egg fetish or a 300 LBS drag queen eating real dog feces? "Hairspray" (the original, I've never seen the one with John Travolta) was a great camp film, so was "Serial Mom".
Don't forget "Carrie" (also a Travolta film, but fortunately he is killed off).
Not sure if qualifies as pure camp, but a friend and I love to watch melodramatic campy flicks like VOTD, and theres quite a few Liz Taylor flicks that are enjoyable in this vein.
Butterfield 8 (Mama, face it, I was the slut of all time!), Suddenly Last Summer (Not even God can change the truth!), and Secret Ceremony come to mind.
Doctors' Wives! Saw it as a teenager, liked it so much that I looked up the author Frank G. Slaughter, found the book in the library and read it.
Apart from the melodrama, the open heart surgery sequence was very rewarding for me, ever since the news of the first heart transplant surgery by Dr. Christian Barnard.
Gene Hackman, Richard Crenna, Janice Rule and Dyan Cannon, what a cast!
Great to see some love for Doctors' Wives! I've not read the novel, but luckily I found the DVD last year. I love every soapy, sudsy, trashy minute of it. The open-heart surgery scene, while illuminating, was not for me, however; I've always been squeamish about such. And yes--what an amazing cast! Don't forget Carroll O'Connor and the amazing Diana Sands, who ruled in every part she ever played, great or small. Thanks!
Imitation of Life with Lana Turner & John Gavin Back Street with Susan Hayward & John Gavin Mildred Pierce with Joan Crawford Double Indemnity with Barbara Stanwyck
The Caretakers(1963) with Polly Bergen and Joan Crawford. Bergen has an over the top breakdown is placed in an asylum where Crawford teaches karate to the staff. The scenery chewing is at an all time high.
The Big Cube(1969) with Lana Turner as a widow whose daughter in law spikes her sedatives with LSD in an attempt to have her declared insane.
Mamie Van Doren and her sister are put in a coed rehab prison camp. Dirty awful work for hours all day, but at night the kids are clean and in finely washed clothes and as peppy and zippy as can be. And, well, Mamie's songs are to be seen to be believed. Don't watch it alone. You'll need someone with you to validate that you are really seeing what you are seeing. You might need them to talk you down from it.
It is Camp to die for!
"I slept with you and you're in love with my husband. What the hell am I supposed to do with that?"