I once spent a week around her while I was an intern at Warner Bros., in this case on the "Banyon" TV series. Best known to us guys on the forum for her role in "Grand Prix," she is one of the most stunningly beautiful women I have ever met in person -- along with Stefanie Powers ("The Girl From U.N.C.L.E."), who was a guest star on a "Search" episode.
No, she was sort of a cameo in a music video, as Julie Andrews sang "Feed the Birds" in "Mary Poppins." It's Jane Darwell, who got the supporting actress Oscar as Ma Joad in "The Grapes of Wrath" and appeared in films like "Gone With the Wind" and many others. Even though she appeared for only a few seconds in Poppins, she was still fondly remembered back then (at age 87; Walt Disney had to convince her to do it.) https://www.youtube.com/watch?v=XHrRxQVUFN4
No. It's Ewa Aulin, the titular star of the movie version of "Candy," (1968), a big-studio sex farce that spoofs pornography, wherein she is seduced by Marlon Brando, Richard Burton, Ringo Starr, John Astin, James Coburn, Walter Matthau and John Huston (whose careers seem not to have been damaged, as they tried to seem relevant during the psychedelic era), with bystanders including Sugar Ray Leonard and a host of popular European stars.