I remember watching Alone in the Dark and really liking the movie. Many years later I learnt about Uwe Boll, and since I didn't remember anything about the movie, I was terrified of watching it again, in case I ended up hating it. 
I still haven't watched it again.
Because Boll's work is so uniquely inept, it kind of deserves it's own scale of quality. If you take it as writ that everything he makes is garbage, you can work out were on the pile certain movies sit. For instance, if
Alone in the Dark and, say,
FarCry, are the expired yogurt you threw out last night, then that would mean that
Postal and...ugh...
Blubberella...are the scum-encrusted beets, half submerged in garbage juice, at the bottom.