Janice plays Sheila Sommers in the Matt Helm spy spoof, The Ambushers. Dean Martin is Matt Helm and the movie is over-the-top camp with Dino leering and drinking his way through the scenes. The plot is thin, the extras are silly and the gadgets are ridiculous. Having said that, the chemistry between Dean Martin and Janice Rule is terrific. Unlike the wooden sex toys that are the Bond girls, Janice's character is sassy and fun. The interplay between the two of them is on par with The Thin Man love-sparring between William Powell and Myrna Loy.
It may be that the lively, perhaps ad-libbed banter between these two would have been impossible in a Bond movie where they had to at least try to be serious. The only Bond girl that comes close to Janice's joie de vivre is Miss Moneypenny and that's probably because she was played for laughs - the running joke being that she would never win James Bond.
The Ambushers is not a great movie or even a decent spy film. It's a fun way to blow 90 minutes and wonder what the Bond films could have been like had they been a little more human.