Belly fat is always the last to go, and as others have pointed out, you will only start to lose the belly fat once your body fat percentage drops below a certain level. It's just nature's way of keeping emergency fat stores at your centre of gravity because it is easier to carry excess weight there. For that reason, your body will lose fat from other parts of the body first, but it is going to hang on to that belly fat for dear life.
Reality Check is right. You need to follow a balanced diet and then keep very active. You need to up the ante with your overall exercise and activity levels. Building lean muscle is the key, rather than overly restricting calories. Once your body realises it needs to kick the metabolism up a gear, the rest tends to fall into place after that.
I run ultra marathons and eat constantly. Never needed to diet, and let me tell you, it feels great knowing that you can eat loads and still be lean. Don't be afraid of carbs, and take in plenty of protein too. Basically a balanced diet in sufficient quantities to fuel your increased activity.