Soon afterwards they broke up, reportedly because Prowse wanted to concentrate on her career. Prowse later admitted, "I was as much flattered as I was in love. He (Sinatra) was a complex person, and after a few drinks he could be very difficult." Prowse co-starred alongside Elvis Presley in G.I. Blues (1960). During shooting of the film, they had a short and intense fling. "Elvis and I had an affair... We had a sexual attraction like two healthy young people, but he was already a victim of his fans. We always met in his room and never went out." Prowse also made a brief cameo appearance in the Metro-Goldwyn-Mayer documentary film, Elvis: That's the Way It Is (1970) as an interviewed audience member about to attend Elvis Presley's opening night show at the International Hotel in Las Vegas on August 10, 1970. She starred with Denny Scott Miller on her own NBC sitcom in the 1965–1966 season: Mona McCluskey, which was produced by George Burns. The series was based on the idea that the couple, Mike and Mona McCluskey, would live on his military salary, rather than her lucrative earnings as an actress. Prowse also did other feature films, including The Fiercest Heart (1961) and Who Killed Teddy Bear? (1965) with Sal Mineo and Elaine Stritch. Although her film and television career did not make her as big a star as predicted, Prowse had a rather philosophical way of looking at it. "Things generally happen for the best... I never worry about what happens in my career, because I can always do something else." Prowse would later go on to headline successful Las Vegas shows, commanding a very high salary. Stating that Las Vegas was the most demanding place she ever worked, she won Entertainer of the Year for the Vegas run of Sweet Charity. She would later show off her famous dancer's legs in a series of lucrative nationwide commercials for a number of advertisers, including L'eggs hosiery and Mannington Flooring. Prowse was a guest on the first season of The Muppet Show. In 1987, she was mauled by the same 80-pound leopard on two occasions: the first time while filming a scene for Circus of the Stars, then later while rehearsing a promotional stunt on The Tonight Show. The latter attack was more serious, requiring upwards of twenty stitches to reattach her ear. Throughout the mid-1980s and 1990s,