After starring Shawn Ku’s indie drama “Beautiful Boy,” Kyle Gallner is set to round out the cast of Alcon Entertainment’s “Beautiful Creatures,” which will be distributed by Warner Bros.Richard LaGravenese is writing and directing the supernatural love story based on the first novel in Kami Garcia and Margaret Stohl’s popular series. Alden Ehrenreich and newcomer Alice Englert star as teenage lovers who uncover dark secrets about their families, their history and their town. Pic co-stars Jeremy Irons, Viola Davis, Emma Thompson, Emmy Rossum and Thomas Mann. Gallner (“A Nightmare on Elm Street”) will play Larkin, Rossum’s younger brother whom she casts a spell on. Alcon toppers Broderick Johnson and Andrew Kosove are producing with Erwin Stoff (“All You Need Is Kill”) and Molly Smith. Gallner will next be seen playing Aaron Paul’s younger brother in James Ponsoldt’s Sundance pic “Smashed,” as well as Elgin James’ indie “Little Birds,” which Millennium Entertainment will release in August. He’s repped by UTA, 3 Arts Entertainment and attorney Stewart Brookman.