Ahhh, but that's the problem. I can in fact, read the file.

This is the line it indicates it is croaking at.

$pictures[$picture_indx] = $pictures[$picture_count]->Read(file=>\*IMA
+GE_IN) or die("Error reading file $filepath $!");
[download]

So that means the OPEN command has already succeeded... imagemagick has no reason to screw up...
I'm thinking perhaps PM is just messed on my box, though it's a debian/stable stock version. The images aren't corrupt either, as they show fine from my browser when viewed from outside a script. The error line it mentions is actually this: