Just a few bad movies whose suckitude dumfounded me in more ways than one:
Date Movie - I watched about four minutes of this garbage, and I can safely say it's probably the worst movie I've ever seen. It is completely devoid of intelligence and talent, and is only good for maybe one cheap, half assed giggle, nothing more. It is proof at how low mainstraim cinema go.
Alien3 - the third movie in a franchise is generally the weakest, but this one is a prime candidate for the worst. Completely ignoring the ingenius vision set up by Ridley Scott in Alien and continued by Cameron in Aliens, director David Fichner chose to create this meandering, depressing suckfest of a sequel filled with hideously over the top acting (Sigourney Weaver included), a horrible, fake looking alien, a plot hole ridden script and poor special effects. The saving graces of the film are Charles Dance (who makes Clemens a great, likeable character despite being killed off before he can get any real development) and Charles S. Dutton, whose performance as Dillon almost makes the film worthwhile. Almost.
Die Hard 2: Die Harder - on its own, it's not that bad, but when compared to the other two films of the series, it's dreadful. It lacks the slick intensity and intelligent scripting of the first film (one of if not the greatest action movies ever made) and the explosive mix of humor and intense that enabled With A Vengeance to work as well as it did. The plot is extremely hard to follow and the performances are dreadfully over the top, especially the villian, played by a no name actor who completely lacked the intelligence and creepiness that Rickman and Irons brought to their roles. Even Willis seems out of it. The action sequences are nice but lack any real excitement, and overall it's just not that great a movie. Not completely awful, but bad enough to warrant a spot on my list.
Omen IV - The Awakening - poorly made and completely unnecessary made for tv update of the original, with Damien Thorne's daughter Delia wreaking havoc on an unsuspecting All American family who have adopted her. It almost kills the credibility of the entire series to the point where it is laughable (for me the series was done after the first one, though II was entertaining). Every sequence meant to be scary is a deliberately cheesy homage to the first film, and that's where it really fails.
Beverly Hills Cop - I know I'll catch heat for this one. I know a lot of people love it and consider it Eddie Murphy's best movie. I watched it last summer, and I hated it. It hasn't aged well. I didn't find it very funny, and I though the humr and action sequence were horribly dated. It is far from Murphy's best work (Trading Places and Coming To America can fight it out for that prestgious title), and definitely his most overrated.
I could probably think of more, but they're not coming to me right now.