Campbell doc premieres in Nashville

The movie was directed and produced by James Keach (producer of "Walk The Line") and produced by Trevor Albert ("Groundhog Day").

Winner of the Grammy for Lifetime Achievement and member of the Country Music Hall of Fame, Campbell was a country music star who crossed over to the pop charts with "Rhinestone Cowboy, "Wichita Lineman" and "Gentle on My Mind."

The film features Bruce Springsteen, Bill Clinton, The Edge, Paul McCartney, Jay Leno, Vince Gil, Jimmy Web, Blake Shelton, Sheryl Crow, Keith Urban, Brad Paisley, Steve Martin, Chad Smith and Taylor Swift.

"Of all the movies I've ever made, this is the most special because of the characters, that's what the audience falls in love with no matter what the action in the film," Keach said. "In this case of the character of Glen Campbell, who was the original crossover musical genius, we have a man who is told to end his career and he does the opposite, inspiring the rest of us to live our lives in the moment and to be ourselves no matter what - with no shame. He's been down a rocky road, and he still has a smile on his face and a song in his heart. That's Glen. For him to ask me to tell his story was something I had to do, this tale potentially had so much sadness but in the end it's a triumph and aims to achieve Glen's dream to tell it like it is. As Glen says, 'I've laughed, and I've cried...it's a hell of a lot better to laugh'."