While still categorized with the Avengers franchise, Iron Man achieves franchise status for the purposes of this thread, and a place on the leaderboard, just below Indy. The updated complete list:
Toy Story (99%, 2010)
Fistful of Dollars (94%, 1965)
Apu (93%, 1956)
Three Colors (90%, 1994)
Mad Max (81%, 1985)
Harry Potter (78%, 2007)
Indiana Jones (77%, 2008)
Iron Man (73%, 2010)
Godfather (68%, 1990)
Avengers (67%, 2008) (62%, 2003)
Lord of the Rings (65%, 2012)
Back to the Future (64%, 1989)
Spider-Man (63%, 2007)
Muppets (63%, 1999)
Evil Dead (63%, 2013)
Police Story (63%, 2004)
Once Upon a Time in China (63%, 1993)
El Mariachi (62%, 1995)
Thin Man (60%, 1944)
Frankenstein - Universal (60%, 1944)
Jack Ryan (59%, 2002)
Star Wars (57%, 1999)
Mission: Impossible (57%, 2000)
Sinbad - Harryhausen (57%, 1973)
Bourne (56%, 2012)
Ocean's Eleven (56%, 2004)
Madagascar (55%, 2005)
Lethal Weapon (54%, 1998)
View Askewniverse (54%, 1995, 2001)
Millennium Series (54%, 2009)
Harold & Kumar (53%, 2008)
Naked Gun (53%, 1994)
Dirty Harry (52%, 1988)
Oz (52%, 1985)
Austin Powers (51%, 1999)
Jurassic Park (50%, 2001)
Dracula - Universal (50%, 1936)
Narnia (49%, 2010)
Jackass (49%, 2002)
Three Mothers (49%, 2007)
Diary of a Wimpy Kid (47%, 2011)
Shaft (43%, 1973)
Witch Mountain (43%, 2009)
American Pie (43%, 2012)
Shrek (41%, 2007)
Mummy - Universal (40%, 1942)
Rugrats (40%, 2003)
Herbie (40%, 1980)
James Bond (39%, 1985)
Men in Black (39%, 2002)
Alien (39%, 1992)
Planet of the Apes (38%, 1973)
Dark Shadows (38%, 2012)
Barbershop (38%, 2005)
Psycho (37%, 1998)
Ice Age (37%, 2012)
X-Men (37%, 2009)
Matrix (36%, 2003)
Transporter (36%, 2008)
Scream (36%, 2000)
Free Willy (36%, 1995)
Pirates of the Caribbean (34%, 2011)
Terminator (33%, 2009)
Creature - Universal (33%, 1955)
Benji (33%, 2004)
Night of the Living Dead (30%, 2010)
Rambo (29%, 1985)
Final Destination (29%, 2009)
Oh, God! (29%, 1984)
Fast and Furious (27%, 2009)
Rocky (27%, 1990)
Teenage Mutant Ninja Turtles (27%, 1993)
Omen (27%, 2006)
Blade (26%, 2004)
Twilight (26%, 2011)
Paranormal Activity (26%, 2012)
Clash of the Titans (26%, 2012)
Honey I Shrunk (25%, 1996)
Phantasm (25%, 1998)
Home Alone (24%, 1992)
Predator (23%, 1990)
Spy Kids (23%, 2011)
Child's Play (23%, 1991%)
Star Trek (21%, 1989)
Resident Evil (21%, 2004)
Transformers (20%, 2009)
Friday (20%, 2000)
Smokey and the Bandit (20%, 1980)
Airport (20%, 1979)
Rush Hour (19%, 2007)
Step Up (19%, 2006)
Hellraiser (18%, 1992)
Die Hard (17%, 2013)
Underworld (16%, 2006)
Nightmare on Elm Street (15%, 2010)
Hannibal Lecter (15%, 2007)
Santa Clause (15%, 2006)
Madea (15%, 2005)
Howling (14%, 1985)
Pokemon (14%, 1999, 2002)
Mummy (13%, 2008)
Vacation (13%, 1997)
Poltergeist (13%, 1988)
Cheech and Chong (13%, 1983)
Alvin and the Chipmunks (12%, 2011)
Alex Cross (12%, 2012)
Pink Panther (12%, 2009)
Batman (12%, 1997)
Texas Chainsaw Massacre (12%, 2006)
Mighty Ducks (12%, 1992)
Exorcist (11%, 2004)
Crocodile Dundee (11%, 2001)
Porky's (11%, 1983)
Superman (10%, 1987)
Fockers (10%, 2010)
Beverly Hills Cop (10%, 1994)
Friday the 13th (10%, 1989)
Saw (10%, 2010)
Cannonball Run (11%, 1984)
Halloween (7%, 1995)
Piranha (7%, 1982)
Universal Soldier (6%, 1999)
Big Momma (5%, 2011)
Major League (5%, 1994)
Karate Kid (5%, 1994)
Scary Movie (5%, 2013)
Robocop (4%, 1992)
Jaws (0%, 1987)
Highlander (0%, 1991)
Amityville (0%, 1983)
Death Wish (0%, 1994)
Look Who's Talking (0%, 1993)
Hills Have Eyes (0%, 1985)
Bad News Bears (0%, 1978)
NeverEnding Story (0%, 1994)
Prom Night (0%, 1992)
Toxic Avenger (0%, 1989)
House Party (0%, 1994)
Police Academy (0%, 1987, 1988, 1989)