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Just picked up Bonnie & Clyde's Ultimate Collector's Edition DVD yesterday and it is the coolest thing. It has two disks completely remastered with more than two hours of new bonus content. Includes a documentary by the history channel, wardrobe tests and additional scenes. It also comes with a 36 pg. hardcover book of rare, behind the scenes photos, a 24 pg. reproduction of the original 1967 press book and special mail in poster offer. Its so pretty its ridiculous.
http://i140.photobucket.com/albums/r31/djporcelain/BC_boxset-6.jpg

You made it already, duh.

http://www.killermovies.com/forums/f45/t479082.html

I really want to get the entire Six feet under box set. Too pricy though.

Without a doubt Park Chan-Wooks: Vengeance Trilogy Deluxe box set (6 discs).
If you've seen the film's you'll notice the box set actually comes in a copy of the gift box from the film Oldboy (pretty cool already):
http://ecx.images-amazon.com/images/I/51vkt89EU9L._AA240_.jpg
In the box set you get a replica claw-hammer (bottle opener)used by Desu in possibly the coolest scene in film history, a copy of the gun blueprints featured in Lady Vengeance, photo cards of images from the films:
http://photos-e.ak.facebook.com/photos-ak-sf2p/v194/186/72/531590550/n531590550_2552716_5234.jpg

Dvd features include:
Sympathy For Mr Vengeance - Double Disc Special Features:
Brand New Fully Remastered HD Feature
Audio Commentary By Director Park Chan-Wook And Actor Ryoo Seung-wan
Jonathan Ross On Park Chan-Wook
Interview With Park Chan-Wook
Production Featurettes
Cast & Crew Interviews
Teasers And Trailers
Widescreen 2.35:1 Anamorphic
Dolby Digital
Languages - Korean
Subtitles - English
Region 2 / PAL / Colour
Running Time 121 Minutes

Old Boy - DVD Special Features:

Brand New Fully Remastered HD Feature
Audio Commentary By Director Park Chan-Wook
Audio Commentary By Director Park Chan-Wook & Cast Members
Audio Commentary By Director Park Chan-Wook & Cinematographer
The Autobiography Of Oldboy (210 Minutes) - An Exhaustive Three-And-A-Half Hour Long Shooting Diary
English Language Dubbed Option
Widescreen 2.35:1 Anamorphic
Dolby Digital
Languages - Korean, English
Subtitles - English
Region 0 / PAL / Colour
Running Time 115 Minutes

Lady Vengeance - DVD Special Features:

Brand New Exclusive-To-Box Set Fade-To-Black-&-White HD Feature
Audio Commentary By Director Park Chan-Wook & Cast
Audio Commentary By Director Park Chan-Wook, Director Of Photography & Art Director
Audio Commentary By Critic Richard Pena
The Making Of Lady Vengeance
Deleted Scenes With Optional Audio Commentary
Character Interviews
Lady Vengeance In Venice
Trailers & Teasers
Widescreen 2.35:1 Anamorphic
Dolby Digital
Languages - Korean
Subtitles - English
Region 0 / PAL / Colour and Black & White
Running Time 115 Minutes

I nearly got that, but I prefer the Korean region 3 releases of Oldboy, and Lady that I have.