Glen Campbell's documentary, 'Glen Campbell...I'll Be Me,' which covered his farewell tour and his ongoing struggle with Alzheimer's disease, premiered at the Nashville Film Festival earlier this month, and clearly left a powerful impression on viewers.

The film, directed by James Keach, won the Gibson Music City / Music City Films Grand Jury Prize, which is awarded by the festival judges.

"['Glen Campbell...I'll Be Me' is] an intimate and honest portrayal of a music legend’s battle with Alzheimer’s," the judges said in bestowing the honor (quote via Country Weekly). "'Glen Campbell ... I’ll Be Me' captures a family’s commitment to love and laugh through the adversity of a debilitating disease.”

The journey has not been easy for his family. They recently made the painful decision to move the 78-year-old to a long-term care facility, when it became too dangerous for him to remain in his home.

“You have to watch him every single second. He’s up all hours of the night and wanders,” his wife, Kim, explains. “He’ll pick up knives and sometimes he won’t want to relinquish it.”

'Glen Campbell...I'll Be Me,' which includes appearances by Keith Urban, Vince Gill, Bruce Springsteen and more, is slated for national distribution in the near future.