There's a video version of "Bang Bang", sung by Nancy Sinatra, which I can't find at the moment. She sings the song while lying/sitting on stage. At the end, she rolls off the stage.
It looks like it may have been for a live-in-studio pop/rock show.
What was the reason for her rolling off the stage? It's very awkward and detracts from the otherwise serene and seductive nature of the song. Did she ever discuss it in an interview?
I found the video, but it has been country-restricted. If you can open it, you can view it.