O'Brien made a name for herself acting in television shows in the 1950s and 1960s and as a film co-star with Cary Grant, Elvis Presley, John Wayne, and Jerry Lewis.
In 'It Happened at the World’s Fair' (1963), she portrayed a nurse at the 1962 World’s Fair in Seattle who attends to pilot Mike Edwards (Elvis Presley) after he suffers a leg “injury” when kicked in the shin by a youngster (Kurt Russell in his first movie). They two wind up having dinner at the top of the Space Needle and falling in love.
(Hollywood Reporter)