A good synopsis of the events/history of the Back to the Future DVDs can be found at
http://www.bttf.com/dvd/.
As for Grosse Point Blank, I agree it needs to be redone, but if memory servers it is a Disney film which means a re-visitation any time soon is highly unlikely. Groundhog Day is another that seems unlikely tog et a special edition revisit later.
I've read rumors about Bladerunner, but nothing concrete other than the next edition will be the real directors cut.
With Pulp Fiction, you can purchase the Region 1 release from Alliance (in Canada). It has extras, and the image is slightly improved from the Buena Vista USA release. One Canadian dvd site off the top of my head is
http://www.cnl.com/.
Hope this helps a bit.
Clortho
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