Ooookay. Great list so far!
I'm a great fan of bad cinema, so I could list about 600 movies so-bad-they're-funny, but that's shooting on ambulances given their budgets. I'll even spare the Hollywood low budget cash grabs (Kazaam, Congo, Lost in Space, Battlefield Earth, Dungeons and Dragons, The Phantom, etc, etc, etc, etc, etc, etc, etc, etc, etc, etc...) or even hopeful grats (like 90% of Robert Rodriguez' work) to concentrate on true massively funded horrors.
But, here are a few adds. Major Hollywood movies that crashed, and burned, and deserved it.
1. Matrix Reloaded and Matrix Revolutions. By the Wachowski then brothers, now sisters.
I mean, where do I even BEGIN with these two? Those two are just horrendous cash grabs with no sense, no consistency, bad action, bad CGI and horrible acting. Frankly, they even managed to make me hate the first Matrxi retrospectively. Also, can we just add ALL the other Wachowski movies to this list, it's not like there are good ones...
2. Batman and Robin, by Joel Shumacher.
It's really, really hard to describe the awe I feel for Batman & Robin. That THIS even made it to an actual screen, viewed by actual people? What. The hell. It's a catastrophy so thorough it's absolutely beautiful. Worth an evening with friends just to heckle it. I'm also pretty amazed by how many good actors they dragged into this hopeless waste of silver nitrate. Thankfully, George CLooney and Uma THurman's careers survived.
3. The Ninja Turtles, by Michael Bay.
Need I say more? Could've used any Michael Bay movies, but Transformers at least had Megan Fox to repair my retinas during the torture seance.
4. A.I, by Steven Spielberg.
Steven...It really, really hurts me to put you on this list. But you done fucked it up! To see a movie with such incredible potential get so thoroughly messed up...The acting is weird, the characters emotions are either superficial or completely inhuman - haha -, the story is all over the place. Spielberg never decided if he wanted to make it a Spielberg movie or a Kubrick hommage - Stanley was supposed to direct AI and died shortly before - and ended up messing up both. Shame, shame, shame!
5. Godzilla, by Roland Emmerich.
So. I was never a great fan of monster movies. But...Come ON!
6. Avatar, the Last Airbender. By Nught Shyamalan
Okay, so again. I HAD to put Shyamalan into this. The guy who had one (probably accidental) movie and has been harassing us ever since with a constant flow of badly written, badly shot, badly acted and badly edited monstrosities that sometimes end up relatively fun because they're so lame (Oh, The Happening, Signs and Lady in the Water how you made me laugh...)
But "Avatar" is probably the single best animated series of all time. I watched it as a 23 years old and loved every second. And this douche comes along to ruin any chance of a decent movie franchise out of it. Shame on you Shyamalan, shame!
6. INDIANA JONES AND THE FUCKING KINGDOM OF THE FUCKING CRYSTAL SKULL, by FUCKING STEVEN FUCKING SPIELBERG.
YOU RUINED IT STEVEN! AGAIN! YOU RUINED EVERYTHING! I WILL HAVE YOUR SKULL FOR THIS ONE!
And there's at least 20 others I can think of (Daredevil, Twister, Spiderman 3, Expendables 2 and 3, the Star Wars Christmas Special...)