STAGE

Lining Up: Before “A Chorus Line” struts back on stage at the Shubert Theatre tonight, several members of the original cast will take part in a book signing for “On the Line,” a book that chronicles the creation and history of the long-running musical. The autograph session, from 6:30-7:30 p.m., will take place at Twenty Twenty, adjacent to the theater, and will include Kay Cole, Ron Kuhlman, Priscilla Lopez and Donna McKechnie, among others.