Mine has the dubious distinction of being the oldest, though not the longest (sweet mother of bleeding Jesus, est, yours is a tribute to the awesomegeist of compulsion) list compiled. I've seen all of these, though I needed help with the chronology prior to the 70's.
1957: Gunfight at the OK Corral,     1958: The Long, Hot Summer, 
1959: Porgy and Bess,     1960: The Magnificent Seven, 
1961: The Hustler,    1962: To Kill a Mockingbird, 
1963: Donovan's Reef,     1964: Dr. Strangelove, 
1965: Cat Ballou,     1966: The Russians Are Coming! The Russians Are Coming!, 
1967: Casino Royale,     1968: The Odd Couple,
 1969: Butch Cassidy and the Sundance Kid,     1970: Catch-22, 
1971: Fiddler on the Roof,      1972: Cabaret, 
1973: The Sting,     1974: Chinatown, 
1975: Rocky Horror Picture Show (283 times),     1976: Murder by Death, 
1977: The Goodbye Girl,     1978: Animal House, 
1979: Being There,     1980: Hopscotch, 
1981: Absence of Malice,     1982: The Year of Living Dangerously, 
1983: The Big Chill,     1984: The Adventures of Buckaroo Banzai across the Eighth Dimension, 
1985: Out of Africa,     1986: Heartbreak Ridge, 
1987: The Witches of Eastwick,     1988: Bull Durham, 
1989: The War of the Roses,     1990: My Blue Heaven, 
1991: The Commitments,     1992: Sneakers, 
1993: Groundhog Day,     1994: Reality Bites, 
1995: Leaving Las Vegas,     1996: Fargo, 
1997: Conspiracy Theory,     1998: The Big Lebowski, 
1999: Dogma,     2000: O Brother, Where Art Thou?, 
2001: The Royal Tenenbaums,     2002: Gangs of New York, 
2003: Runaway Jury,     2004: The Life and Death of Peter Sellers, 
2005: No Direction Home,     2006: A Scanner Darkly, 
2007: Michael Clayton,     2008: Transsiberian