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.[citation needed]
He gained recognition and commercial success by penning the screenplay for Braveheart (1995), 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 Mel Gibson, who went on to produce, direct and star in the film. It ended up as one of the most successful films of 1995, earning over $200 million. It was nominated for ten Academy Awards, including a Best Original Screenplay nomination for Wallace, and won five, including the Academy Awards for Best Picture and Best Director. Braveheart also won one Golden Globe Award and four BAFTA Awards.
This was followed by Wallace's second film as director We Were Soldiers (2002), on which Wallace re-teamed with Mel Gibson. It was about the Battle of Ia Drang (1965) during the Vietnam War, based on the memoir by Lieutenant General Hal Moore.
Wallace directed Disney's Secretariat (2010), 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.[4]
In interviews he has acknowledged a deep commitment to Christianity, which he credits as an influence on his approach to filmmaking.[3][8]
He appeared in the seventh season episode 3 "Dramedy" 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.[citation needed] 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.[citation needed]