Well, Krull wasn’t poor so much as underwhelming, but the James Horner’s orchestral score sounds like what’s on God’s iPod. I saw it when it first came out, and I can still whistle the main theme. from And The Ride Of The Fire-Mares is just fucking mental: check out the fanfare from the main theme at 2.32 and then its triumphant reprise at 4.39. Vikings get cremated to music like this.
M. Night Shyamalan’s The Village has a killer score. I personally like the movie, a lot, but I know many people don’t.
O Brother, Where Art Thou?
And Death of the Beast sounds like Liszt and Holst having a fistfight on the bridge of a Zeppelin as it plunges in flames into Valhalla.
How was that a poor movie?
I thought it was a good movie, but the score to Bram Stoker’s Dracula was awesome
I love the Coen Bros, but I thought that film was a mess – highfalutin’ dialogue without much purpose. Yeah, I get it, Odysseus and all that – works better in theory than in execution. Obviously, your mileage varied. 
some people may argue about the quality of the film but I have to say Superfly Curtis Mayfield baby
It’s probably against Cafe Society rules to just agree to disagree; we clearly have to argue for five pages about whose opinion is better 
Hey, at least we both love the soundtrack!
*Ever After *- pathetic movie but superb music.
Generally The Black Hole is the go to for this.
E.T. wasn’t exactly a poor movie, but wasn’t all that great, either. However, it was immensely helped out by its John Williams score.
And you had to remind me:
John Williams score for Star Wars Episode I, I actually own it and the “Duel of the Fates” was so good to evoke a cataclysmic encounter that it was selected by PBS for a show about the Apocalypse bible book instead of the overused O Fortuna (Carmina Burana).
The score gave one hope about how great the movie was going to be…
Darn it.
Mortal Kombat 2: Annihilation. A love of mid 90s techno and industrial music is a prerequisite, but it’s a personal favorite of mine. The movie is beyond awful though.
Any number of spaghetti westerns with Morricone scores, the one that comes to mind is Death Rides A Horse. Which isn’t so much terrible as almost entirely generic, and yet has one of his greatest scores.
The standard answer is the 1967 version of Casino Royale, great score, great theme tune, an Oscar nominated song, but a terrible movie.
I think much the same can be said for just about every Bond movie since, oh, about 1972.
I digitally have about 150 soundtracks. After perusing them, some of the lesser received ones were:
The Hindenburg
Twin Peaks Fire Walk With Me
The Razor’s Edge
Star Trek the Motion Picture, comes to mind.