Here are some classics that have HD not available on Blu-ray yet:
#
3 Godfathers (The)
A
A Big Hand For The Little Lady
A Man and a Woman
A Man for All Seasons
A Place in Sun
After Hours
All About Eve
Alfie (1966)
Americanization of Emily, The
Anna Karenina (Garbo)
Atlantic City
B
Baby Doll
Back To Peyton Place
Barefoot in The Park
Beast From 20,000 Fathoms, The
Blood Alley
C
Captain Blood
Cat on a Hot Tin Roof
Catch-22
China Seas
D
Dark Passage
Dark Victory
Death Wish
Destination Tokyo
E
East of Eden
F
Frenzy
From Here to Eternity
G
Gallipoli
Gentlemen's Agreement
Giant
Gone With the Wind
Great Ziegfeld, The
Gunfighter, The
Gunga Din
H
Heaven Can Wait (1978)
Heaven Knows, Mr. Allison
Hombre
Horror of Dracula*
How Green Was My Valley
(The) Hustler
I
Inn of Sixth Happiness, The
K
Klute
L
Laura
Little Caesar
Longest Yard, The
Lust for Life
M
Man Who Knew Too Much, The
Man Who Shot Liberty Valance, The
Marnie
McCabe & Mrs.Miller
Mildred Pierce
N
Niagara
O
Odd Couple, The
Out of the Past
P
Paper Moon
Parallax View, The
Paris When It Sizzles
Peyton Place
Philadelphia Story, The
Play it Again, Sam
Point Blank
Postman Always Rings Twice, The (1946)
Pretty Poison
Public Enemy, The
R
Rear Window
Rebel Without a Cause
Ride the High Country
S
Shadow of a Doubt
Shall We Dance
Shootist, The
Sons of Katie Elder, The
Summer of '42
T
To Have and Have Not
V
Valley of Gwangi, The
Vertigo
W
Wait Until Dark
White Heat
Who's Afraid of Virginia Woolf?
Witness
Wizard of Oz (The)
Y
Year of Living Dangerously, The