Hello all.
Much like my previous post on what books make one well read, I am also interested in how to define a good video collection. (By “video” I mean video tape and DVD, allthough I know that DVD is the perferred source of home movie ownership.)
So here is the question: What video’s must be in a video collection to make it good?
This one, I think, is gonna be fun. 
First off, welcome to the SDMB! Posts like these usually belong in the Cafe Society Forum.
Now to answer your question in a Great Debate sense, it cannot be answered. Everyone is different when it comes movies. What is a favorite of yours, may not be a favorite of mine, or anyone elses. 
[Moderator Hat ON]
To Cafe Society.
[Moderator Hat OFF]
I’ll start you off. If you don’t have “Singin’ in the Rain” or “The Music Man” you don’t have two of the greatest musicals ever made. IMHO
According to me:
Classics (Foreign & Domestic):
Out Of The Past
The Bicycle Thief
Ikiru
Casablanca
The Rules of the Game
L’Age D’Or
Metropolis
The Seventh Seal
The Seven Samurai
The Big Sleep
Rififi
M
The Cabinet of Dr. Caligari
Citizen Kane
The Lady Eve
New Wave (60s-70s)
Blow Up
8&1/2
Branded To Kill
The Conversation
Psycho
Mean Streets
Dawn of the Dead
The Godfather Parts I & II
A Hard Day’s Night
A Clockwork Orange
The Killing of a Chinese Bookie
The Graduate
The Umbrellas of Cherbourg
Joe
Faster, Pussycat, Kill! Kill!
The Wild Bunch
Switchblade Sisters
Taxi Driver
Night of the Living Dead
Contempt
Modern (80s-Present)
Bladerunner
After Hours
Fargo
Withnail & I
Brazil
Airplane!
Amelie
Raging Bull
Gallipoli
Chungking Express
Reservoir Dogs
The Killing Fields
The Big Lebowski
Ghost World
Mystery Train
Goodfellas
Before Sunrise/Before Sunset
Mulholland Drive
Spirited Away