Just remembered another massive movie disappointment... Highlander 2.
I went to see Highlander (the first one) at the pictures when it came out and loved every moment of it. I liked it so much i went to the cinema again the next night and watched it again (something i've never done before or since). In the following few years I watched it countless times, and naturally got excited when i heard about the sequel (although i couldn't work out how they could do a sequel to a story that was done and dusted at the end of the first installment).
So yes... Highlander 2... WTF were they thinking!?!?!

They couldn't have made a bigger feck up if they tried!