Miley Cyrus felt more than the beat last summer as she got downright nasty on the dance floor with a slightly older gentleman during a wrap party for a movie ... and TMZ has obtained the video. Miley, who was 16 at the time, was dancing with 44-year old Adam Shankman during a wrap party last summer in Georgia for the movie, "The Last Song." Shankman, who is openly gay, produced the movie as well as "Hairspray" and other flicks and is a judge on "So You Think You Can Dance?" The people who shot the video say they were offended by the dirty dancing, which included a graphic lap dance. We're told Miley's parents were not at the wrap party. Miley's reps had no comment. Check out the full story on TMZ TV tonight. Tune in to TMZ on TV weekdays Monday through Friday at 9:30pm following FOX News Baton Rouge on FOX44.