While filming on location in Los Angeles, Elvis was knocked to the ground by several old women in an attempt to get Rudy Vallee's autograph.
This has often been cited as being Elvis Presley's only adult themed film, but this isn't completely accurate. His film Stay Away, Joe (1968) which was released earlier in the same year, had several adult themes to it, including language, strong violence, alcohol use, and implied nudity from several girls.