Nobody is more famous for their workouts or their abs than Rocky in his training montages from every Rocky movie. None is more memorable than in Rocky IV.
Have you ever seen "Rocky IV"? Remember the ab workout Sylvester Stallone does? It's called Dragon Flags and here's how to do them.
Here's an example of Stallone's workout program from Rambo 4, Rocky Balboa,. Shoulders, Arms, and Abs Workout. Rear Deltoids, Traps, and Abs Workout.