Do stretching exercises and bending exercises. That helps alot! :)
http://www.menshealth.com/mhlists/lean-belly-countdown/?cm_mmc=BONL-_-1069346-_-10102012-_-LeanBelly-dek
A low-carb diet will give you a flat belly faster than any exercise. The paleo diet is the healthiest form of low-carb diet, IMO. I would not go on a low-carb diet that was composed of low-carb junk food. If you eat a paleo diet, you are only eating real, whole foods (no junk food) and no grains. It's a lot of meat, vegetables, and healthy fats. Some of the paleo people eat limited fruit (high in sugar), root vegetables (high in complex carbs), and dairy foods (high in compounds to which our bodies are not necessarily well adapted); some of them totally eliminate fruits, root vegetables, and dairy foods. You can easily find a lot to read about the paleo diet and all of its different versions. Good luck on achieving your goals.