MovieStarPlanet is completely free to play, however there are some "bonus" parts of the game which requires a VIP membership. You can purchase a VIP membership in game, making your account a VIP account. This will give you access to certain benefits, such as clothing, bonus StarCoins and things to help you on your way to becoming the top Moviestar on the planet!
There is no free way to get a VIP account. If moviestarplanet is your favorite game, why not support the makers of the game and purchase a VIP account for yourself? They aren’t too expensive, but be sure to ask your parents/gaurdians first!