Over the past two decades, researchers have gained a great deal of insight into the risks surrounding concussions — some of which has led to sweeping policy changes. Kevin C. Cox/Getty Images Sports via Getty Images
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12 super football movies: from 'North Dallas Forty' to 'Rudy'
1. 'North Dallas Forty'
Nick Nolte is wide receiver Phillip Elliott in 1979's "North Dallas Forty," ranked No. 1 on Tribune News Service's list of the 11 best football movies. It was directed by Ted Kotcheff and includes Mac Davis and former Oakland Raider John Matuszak in the story of the North Dallas Bulls, a team modeled after the Dallas Cowboys.
2. 'The Longest Yard'
Burt Reynolds stars as quarterback Paul Crewe, thrown into prison in 1974's "The Longest Yard." Robert Aldrich directed the story about a group of prisoners taking on the guards on the football field. Eddie Albert played the evil warden.
3. 'Rudy'
Sean Astin stars as the Notre Dame football underdog in 1993's "Rudy." David Anspaugh directed the story of walk-on Rudy Ruettiger's time with the Fighting Irish. The cast included future stars Vince Vaughn and Jon Favreau.
4. 'Friday Night Lights'
Peter Berg directed 2004's "Friday Night Lights," based on H.G. "Buzz" Bissinger's 1988 book about the Permian High School team in Odessa, Texas. Billy Bob Thornton played coach Gary Gaines.
5. 'Heaven Can Wait'
Warren Beatty stars as Joe Pendleton, a backup quarterback for the Los Angeles Rams who is summoned to heaven before his time, in the romantic fantasy movie "Heaven Can Wait." Beatty co-directed the 1978 romantic comedy with Buck Henry and co-starred with Julie Christie, James Mason, Dyan Cannon, Jack Warden and Charles Grodin.
6. 'Jerry Maguire'
Tom Cruise stars as the title character, a sports agent, in 1996's "Jerry Maguire." Cameron Crowe directed the blend of a romance and a sports story. The film co-starred Renee Zellweger and Cuba Gooding Jr. and spawned the catchphrase "Show me the money!" shouted by Gooding's character, wide receiver Rod Tidwell.
7. 'Horse Feathers'
The Marx Brothers take the field in 1932's "Horse Feathers." Norman Z. McLeod directed this college-based comedy that features Groucho as headmaster Quincy Adams Wagstaff, who tries to recruit a couple of ringers for the football team but winds up with Harpo and Chico.
8. 'Number One'
The offensive line of the New Orleans Saints awaits the call of quarterback Ron Catlan, played by Charlton Heston, in 1969's "Number One." Tom Gries directed the story of an aging quarterback who doesn't know when to hang it up. Jessica Walter played his wife, with Diana Muldaur as his mistress.
9. 'Paper Lion'
Alan Alda puts on his football gear for a practice session with the Detroit Lions in 1968's "Paper Lion." Alex March directed the story from the real-life adventures of George Plimpton, who spent a training camp and preseason scrimmage with the Lions. NFL stars Alex Karras and Roger Brown played themselves.
10. 'Brian's Song'
Gale Sayers (Billy Dee Williams) comforts Brian Piccolo (James Caan) in 1971's "Brian's Song." Buzz Kulic directed the true-life story about the friendship between Sayers and Piccolo, who died at age 26.
11. 'Any Given Sunday'
Al Pacino is Miami Sharks coach Tony D'Amato and Cameron Diaz is the team owner in 1999's "Any Given Sunday." The Oliver Stone drama included Dennis Quaid and Jamie Foxx.
12. 'Concussion'
Actor Will Smith attends a special screening of "Concussion" in New York in this Dec. 16, 2015, file photo. In the film Smith portrays Dr. Bennet Omalu, a forensic pathologist who fights against the National Football League over his research on chronic traumatic encephalopathy (CTE) brain degeneration suffered by professional football players.
