Book excerpt: Stellar Transformations: Movie Stars of the 2010s circles around questions of stardom, performance, and their cultural contexts in ways that remind us of the alluring magic of stars while also bringing to the fore the changing ways in which viewers engaged with them during the last decade. A salient idea that guides much of the collection is the one of transformation, expressed in these pages as the way in which post-millennial movie stars are in one way or another reshaping ideas of performance and star presence, either through the self-conscious revision of aspects of their own personas or in redirecting or progressing some earlier aspect of the culture. Including a diverse lineup of stars such as Oscar Isaac, Kristen Stewart, Tilda Swinton, and Tyler Perry, the chapters in Stellar Transformations paint the portrait of the meaning of star images during the complex decade of the 2010s, and in doing so will offer useful case studies for scholars and students engaged in the study of stardom, celebrity, and performance in cinema.