After managing an animal show at Nashville's Opryland, Wallace moved to Hollywood to pursue a career in singing and songwriting. He began writing short stories, novels and scripts for movies. Wallace was taken under the wing of leading television producer Stephen J. Cannell and spent several years writing for television in the late 1980s and early 1990s. He gained recognition and commercial success by penning the screenplay for Braveheart, which was inspired by a trip to Scotland to learn more about his Scottish roots. While there, he discovered the legend of the medieval Scottish patriot William Wallace; he is not, however, related to William Wallace in any way. Braveheart became Wallace's first screenplay to be produced, after drawing the interest of director and star, Mel Gibson. It ended up as one of the most successful films of 1995, earning the Academy Award for Best Picture and Academy Award for Best Director, with three additional wins. It further garnered another five Academy Award nominations, one Golden Globe Award and four BAFTA Awards. Wallace made his directorial debut with his own screenplay in The Man in the Iron Mask, starring Leonardo DiCaprio, John Malkovich, Gabriel Byrne, Jeremy Irons and Gérard Depardieu. Shortly after, he wrote the screenplay for Pearl Harbor, directed by Michael Bay and starring Ben Affleck, Josh Hartnett and Kate Beckinsale. This was followed by Wallace's second film as director We Were Soldiers, on which Wallace re-teamed with Mel Gibson. It was about the Battle of Ia Drang during the Vietnam War, based on the memoir by Lieutenant General Hal Moore. Wallace directed Disney’s Secretariat, the true story of the racehorse that won the Triple Crown in 1973. The film chronicled the struggles and courage of owner Penny Chenery-Tweedy, portrayed by Academy Award-nominated actress Diane Lane. Wallace also wrote the end title song, It’s Who You Are, which was released with the Secretariat soundtrack. Wallace's next directorial project was the religious dramaHeaven Is for Real, based on the story of the same name; the film was released on April 16, 2014. The same year, it was announced that Wallace was developing a movie about the Vikings with Mel Gibson. As of 2018, this project is still in development.
Other work
Wallace is the New York Times bestselling author of seven novels and the lyricist of the acclaimed hymn "Mansions of the Lord", originally written for We Were Soldiers and performed as the recessional for President Ronald Reagan's national funeral. In 2008, Wallace wrote several songs with singer/songwriter Richard Marx. One of those songs, "Flame In Your Fire", appears on Marx's album Emotional Remains. In interviews he has acknowledged a deep commitment to Christianity, which he credits as an influence on his approach to filmmaking. He appeared in the seventh season of HBO's comedy series Entourage as himself. In addition to his work as a filmmaker, Wallace is the founder of Hollywood for Habitat for Humanity and the father of two sons. In 1999, he formed his own company, Wheelhouse Entertainment, which is focused on creating entertainment for worldwide audiences based on the classic values of love, courage and honor. Wallace was the speaker at the Fellowship FoundationNational Prayer Breakfast on February 3, 2011. Wallace served as the commencement speaker at the Liberty University graduation ceremony on May 14, 2011.