I agree wholeheartedly on both counts. At least Titanic had decent special effects and nice art direction. The plot, though...blecccch.
I would add:
Brewster McCloud
Supposed testament to Altman's genius in the 70s; now utterly unwatchable. It must have been the drugs.
Last Tango in Paris
I still can't enjoy butter.
I still can't enjoy butter.
Finally someone nailed that one! I would add another Brando film, Apocalypse Now.