Co-Star with the same person until you max them out. They give stars.
Good ratings on big projects.
Level up.
Saving stars. If that makes any sense. If you can sacrifice buying that one dress to get something more worthwhile, or if you can wait until later for the movie to start, probably your best move.
Comments
These are just some general ways to get stars. You won't be getting them all at once, but overtime they will accumulate. :] Happy Stardom!