Rebecca: Lights, Camera, Rebecca! by Jacqueline Dembar Greene

[American Girl Publishing] For her tenth birthday, Rebecca is invited to visit her cousin Max's movie studio! When the cameras begin to roll, she finds herself unexpectedly presented with a part to play. Rebecca doesn't have the courage to tell her family, but is it wrong to keep such a big secret? Later that summer, on a visit to the factory where her uncle and cousin work, Rebecca is horrified. Is this the life that's in store for cousin Ana? There must be a way to improve conditions at the factory, and Rebecca is determined to do her part - even if it means marching straight into danger.