What are good old movies to watch?

I started watching this movie one day and 10 minutes in I was mesmerized and could not move from the screen.  It was so good. :)

https://www.youtube.com/watch?v=LRjpqJozOcI

I love Shirley Temple movies. Such talent as a little girl.

It just has to be Goodnight Mister Tom! I enjoyed that movie as a kid. How about Romeo and Juliet?

12 Angry Men

On the Waterfront

The Great dictator

Modern Times

North by Northwest

Rear Window

Gaslight

M (1931)

Once upon a time in the West

James Bond : Goldfinger

The Good, the Bad and the Ugly

Charade

The boy in the striped pajamas

To kill a mocking bird

It's a wonderful life

Birth of a Nation [1915] close up, crane shots, some new camera work

Safety Last [1923]

The Jazz Singer [1927] first major talkie

Becky Sharp [1935] first technicolor 

Gone With the Wind [1939]

Citezen Kane [1941]

The Robe [1953] first widescreen movie

The Ten Commandments [1956]

Spartacus [1960]

Patton [ 1970]

The Godfather [1972]

Barry Lyndon [1975] all natural lighting

Life of Brian [1981]

Now they are starting to get new. All these are classics. A few are for technical firsts.

The Magnificent Seven

Rio Bravo 

Gunfight at the O.K. Corral

Shane 

The Outlaw Josey Wales 

Spartacus 

The Adventures of Robin Hood 

The Maltese Falcon 

The Big Sleep 

Charade

An Affair To Remember

The Long Hot Summer

The Hustler

Hud

Sayonara

Imitation of Life

Guess Who Coming To Dinner

Oklahoma!

THE KING AND I 

Singin' in the Rain 

Jailhouse Rock

Viva Las Vegas

It Happened One Night

Gone with the Wind

Casablanca

An American In Paris

The Greatest Show on Earth 

The Bridge on the River Kwai 

My Fair Lady

In The Heat Of The Night

The French Connection 

Rain Man

Driving Miss Daisy

Silence Of The Lambs

Terminator 2: Judgment Day

Ocean's 11

Ocean's Eleven

Ocean's Thirteen

Back to the Future Movies

Bruce Almighty

Dirty Rotten Scoundrels

John Adams

Truman

Kennedy The Complete Series

Thirteen Days

All the President's Men 

MacArthur

The Man Who Never Was

Seven Days in May 

Fail-Safe 

The Siege 

The Hunt for Red October

Clear and Present Danger 

The Assignment 

The Manchurian Candidate 

The Spy Who Came in From the Cold 

Tinker Tailor Soldier Spy (BBC Miniseries) 

Smiley's People(BBC Miniseries) 

Rear Window

The Man Who Knew Too Much

Vertigo

North By Northwest

Rear Window(remake, Christopher Reeve & Daryl Hannah)

Manhunter

Red Dragon

Hannibal

The Game

The Net

Untraceable

2001: A SPACE ODYSSEY 

Steamboat Willie

Snow White And The Seven Dwarfs

Cinderella

Beauty and the Beast 

Aladdin 

20,000 Leagues Under the Sea 

The Absent Minded Professor 

The Love Bug - Herbie 

The Apple Dumpling Gang

Herbie Goes to Monte Carlo 

The Kid (aka Disney's The Kid) 

Saving Mr. Banks 

The Color Of Money

Who Framed Roger Rabbit 

Ransom 

There are some major classic films worthy of reviewing. QuA's list is excellent, and I would add:

Lawrence of Arabia.

War & Peace.

12 Angry Men.

Advise and Consent.

Seven Days in May.

And, in my view, the greatest film ever made: 2001, A Space Odyssey (1968).

old James Bond movies are always a classic.  

Casablanca. The Quiet Man.