POTC3 no demand? Okay I think almost all people even those who liked it (myself included) can safely say POTC2 was a disappointment compared to the first movie, but that does not mean the third is not in high demand. It ended on a cliffhanger. Even if it was The Temple of Doom or Back to the Future Part II (let's all really hope not Matrix 2, with warning signs of what is to come) it is a well liked movie that has grossed ASTRONOMICAL AMOUNTS OF MONEY. It's left a major cliffhanger or two, or three, or four right before the credits rolled and the third comes out less than a year away (close to 11 months to be exact).
I'd say that POTC3 is in much higher demand than Shrek 3, as is SM3. Which is why I think both will make more than Shrek 3 which made the mistake of sandwiching itself. Sure SM3 will be in its third week and it will easily take the number 1 spot but then the following week POTC3 comes out with its target audience the same as Shrek 3, this is just bad business by Dreamworks if you ask me. They shoulda' gone for July 4th as the general buzz is that Transformers ig going to go bust (kinda' like how SR or Hulk did).
Also, this has been a bit of a bad year for films hasn't it? The spring offered nothing good in multiplexes other than V for Vendetta and only a few indies shined (The Matador, Thank YOu For Smoking, A Prarie HOme Companion, etc.) and the summer flicks have all either been slightly disappointing (POTC2, SR) or major pieces of crap (everything else). Hopefully '07 will do better in summer at least.