Updated casting has been announced for Red Bull Theater’s offering of Pirandello’s Henry IV, in a new version by Tom Stoppard, on Monday, January 9, at 7:30pm at Playwrights Horizons Mainstage Theatre. Tony Award winner Jack O’Brien will direct this presentation, which is part of the company’s Revelation Readings series. Patrick Page will star in the title role, with the cast also including Richard Easton, Jennifer Ehle, John Elison Conlee, Victor Garber, Darren Goldstein, Mamie Gummer, Aaron Krohn, Daniel Stewart Sherman, Benjamin Walker, and Paxton Whitehead.

According to Playbill, Mamie Gummer and Josh Hamilton will take part in “Hamlet at Home,” a presentation of the New Group’s Dark Nights reading series, Dec. 11 at the Acorn Theatre. New Group artistic director Scott Elliott will direct the 7 PM evening that promises scenes from Hamlet. In addition to Gummer (Arcadia) and Hamilton (The Cherry Orchard), the presentation will include Lisa Emery (Sex Lives of Our Parents) and Wallace Shawn (Marie and Bruce). The cast will take part in a discussion following the performance. According to the New Group, “‘Hamlet at Home’ centers around readings of scenes from Shakespeare’s greatest family drama, featuring Hamilton as the prince, Shawn as Claudius and the Ghost, Emery as Gertrude and Gummer as Ophelia… This event is the culmination of an extended actor-driven exploration into the intimate side of the story.” Upcoming Dark Nights events include “Adapting Baal,” which will feature Ethan Hawke, Jonathan Marc Sherman, Shelby & Latham Gaines (Feb. 12, 2012); and “Reflecting Rabe,” exploring the work of playwright David Rabe (April 1, 2012). Reservations are required. The Acorn Theatre is located at Theatre Row, 410 West 42nd Street. For further information visit thenewgroup.org.

Finally some news regarding Mamie – according to the New York Daily News, she’s shooting a pilot for a Lifetime series “Modern Love” on the streets of New York. Eric Stoltz plays the science editor of the New York Times who gets assigned to edit the “Modern Love” column while dealing with his problematic marriage. If the pilot’s any good and gets picked up, we’ll find out. Like Stoltz, castmembers Ally Sheedy, Mamie Gummer and Alice Ripley have all get NY stage cred, so fingers crossed.

According to the Washington Post, Mamie Gummer and Benjamin Walker have tied the knot on July 16th. The actress (daughter of Meryl Streep) wed her actor boyfriend at the family’s estate wearing her grandmother’s gown for the lake-side ceremony with 150 guests (including Tracey Ullman, Laura Linney and Claire Danes), then changed into another dress for dinner. No further information from other sources, but in case it’s true – congratulations!

After starring in TV’s ‘Off the Map,’ Mamie Gummer is headed off-Broadway. According to Broadway.com, Mamie, Jenn Gambatese and Hamish Linklater will have leading roles in David Ives’ The School for Lies, a new adaptation of Moliere’s The Misanthrope to be mounted by Classic Stage Company. The play will begin previews on April 13 at CSC’s off-Broadway home and open on May 1, for a limited engagement through May 22, directed by Walter Bobbie.

Back in May, Playbill reported on a new production of “Three Sisters” by the Classic Stage Company, starring Maggie Gyllenhaal, Peter Sarsgaard, Mamie Gummer and Josh Hamilton. Now that the production is getting closer for a winter opening, Mamie is no longer part of it due to her commitment with ABC’s “Off the Map”, as the Wall Street Journal reports:

“Three Sisters,” set to run from Jan. 12 through Feb. 20, reunites the team behind “Uncle Vanya,” which ran at CSC last year to mixed reviews. Gyllenhaal and Sarsgaard starred in that production, directed by Austin Pendleton, who is returning to helm “Three Sisters.” Another “Uncle Vanya” cast member, Mamie Gummer, was set to play Irina in “Three Sisters” but withdrew amid a scheduling conflict with an upcoming ABC series.