All winners 1929-2008, some may not appear in the DLC but it's close to impossble to get an overview of all included.
All About Eve (1950)
All Quiet on the Western Front (1930)
All the King's Men (1949)
Amadeus (1984)
American Beauty (1999)
An American in Paris (1951)
Annie Hall (1977)
The Apartment (1960)
Around the World in 80 Days (1956)
A Beautiful Mind (2001)
Ben-Hur (1959)
The Best Years of Our Lives (1946)
Braveheart (1995)
The Bridge on the River Kwai (1957)
The Broadway Melody (1929)
Casablanca (1942)
Cavalcade (1933)
Chariots of Fire (1981)
Chicago (2002)
Cimarron (1931)
Crash (2005)
Dances with Wolves (1990)
The Deer Hunter (1978)
The Departed (2006)
Driving Miss Daisy (1989)
The English Patient (1996)
Forrest Gump (1994)
The French Connection (1971)
From Here to Eternity (1953)
Gandhi (1982)
Gentleman's Agreement (1947)
Gigi (1958)
Gladiator (2000)
The Godfather (1972)
The Godfather Part II (1974)
Going My Way (1944)
Gone with the Wind (1939)
Grand Hotel (1932)
The Great Ziegfeld (1936)
The Greatest Show on Earth (1952)
Hamlet (1948)
How Green Was My Valley (1941)
In the Heat of the Night (1967)
It Happened One Night (1934)
Kramer Vs Kramer (1979)
The Last Emperor (1987)
Lawrence of Arabia (1962)
The Life of Emile Zola (1937)
The Lord of the Rings - The Return of the King (2003)
The Lost Weekend (1945)
A Man for All Seasons (1966)
Marty (1955)
Midnight Cowboy (1969)
Million Dollar Baby (2004)
Mrs. Miniver (1942)
Mutiny on the Bounty (1935)
My Fair Lady (1964)
No Country for Old Men (2007)
Oliver! (1968)
One Flew Over the Cuckoo's Nest (1975)
On the Waterfront (1954)
Ordinary People (1980)
Out of Africa (1985)
Patton (1970)
Platoon (1986)
Rain Man (1988)
Rebecca (1940)
Rocky (1976)
Schindler's List (1993)
Shakespeare in Love (1998)
The Silence of the Lambs (1991)
The Sound of Music (1956)
The Sting (1973)
Terms of Endarment (1983)
Titanic (1997)
Tom Jones (1963)
Unforgiven (1992)
West Side Story (1961)
Wings (1927)
You Can't Take It With You (1938)
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There is not possible to pause Pop Quiz, so you may not have the time to find the movies on this list. If not you just read through this list or the one on imdb (
http://www.imdb.com/Sections/Awards/Academy_Awards_USA/ - some find it easier if the title can be connected to a year or other nominees) so you can remember a few.
Pop Quiz do always appear as the last segment in round 2 in a short game with only DLC enabled.