Jackie Chan is a very good comedy/martial arts star. He does one kind of martial arts that Jet Li doesn't know how to do and Jet Li does a martial art that Jackie Chan doesn't know how to do. You can both go to two Chinese restaurants but both can have different kinds of food.
If eating out order your meal and ask the server to wrap up half of the portion to take home with your for the next day keeping your portion size in check and stretching your dollar into two meals.