Rebecca Rubin worries that her tenth birthday will be ruined because it falls during Passover, but her mother's cousin Max, an actor, takes her with him to a movie studio, where she makes friends with an actress and a set carpenter.

It's 1914, and twelve-year old Darleen Darling has the most exciting job in the world - she gets to dangle from cliffs and stop moving trains and soar through the sky in runaway balloons! Yes, that's right: Darleen is a hero and a star - in the make-believe world of the movies. But Darleen's fictional adventures collide with reality when a fake kidnapping intended as a publicity stunt becomes all too real. Now she is in the hands of the dastardly...

School is out for summer and the timing is great because a movie is filming in River Heights, and Nancy, Bess, and George--along with a bunch of their classmates--get to be extras in a scene shot at the playground! The movie features Glam Girl, a fashion-forward superhero who gets her powers through her clothes. When the girls arrive on set, they catch a glimpse of the super shoes that give Glam Girl the ability to run, jump, and kick with super-speed....