DeMent has doubled for stars such as Brenda Vaccaro, Michele Lee, Charlotte Rampling, Suzanne Pleshette, and Teri Garr. She has appeared in films such as Spartacus (1960, with Jean Simmons), What Ever Happened to Baby Jane? (1962), The Greatest Story Ever Told (1965, with Nehemiah Persoff, Mark Lenard, Abraham Sofaer, Celia Lovsky, Victor Lundin, and Gil Perkins), The Graduate (1967, with Kevin Tighe), The Great Bank Robbery (1969, with John Anderson, Elisha Cook, Jr., John Fiedler, Bill Zuckert, Kenny Endoso, and stunts by Paul Baxley, Bennie E. Dobbins, Robert Herron, Carey Loftin, Hal Needham, and Carl Saxe), Airport (1970, with Whit Bissell, Lou Wagner, William Boyett, Celia Lovsky, and stunts by Donna Garrett), Earthquake (1974, with Genevieve Bujold, John S. Ragin, George Murdock, Ge