 Her acting career began with uncredited roles in 12 films, the first as Prudence in "Under Western Skies" (1945).Her first credited film role was as Jane Preston in the 1946 film "Sunset Pass" with co-star James Warren.In March 1947, Leslie was among several actors and actresses attending the premieres of "Trail Street", an RKO Pictures release, with Randolph Scott in the role of Marshal Bat Masterson in the town of Liberal, Kansas.