THE MOUNTAINTOP Katori Hall’s Olivier Award-winning drama about the Rev. Dr. Martin Luther King’s final night before his assassination, featuring Maurice Emmanuel Parent and Kami Rushell Smith. Directed by Megan Sandberg-Zakian. Through Feb. 3. Underground Railway Theater. At Central Square Theater, Cambridge. 866-811-4111, www.centralsquaretheater.org
INVISIBLE MAN The nameless protagonist confronts racial injustice, power politics, and betrayal in a stage adaptation of Ralph Ellison’s classic novel that’s as unsettling as Ellison would have wanted it to be. Adapted by Oren Jacoby, directed by Christopher McElroen, and starring Teagle F. Bougere, in a performance that grows in force over nearly three hours. Through Feb. 3. Huntington Theatre Company.
At Boston University
Theatre. 617-266-0800, www.huntingtontheatre.org
MARRY ME A LITTLE Director IIyse Robbins broadens the Stephen Sondheim musical revue to include gay relationships, and it works beautifully in this understated gem of a production. Through Jan. 27. New Repertory Theatre, Charles Mosesian Theater, Arsenal Center for the Arts, Watertown. 617-923-8487, www.newrep.org
PIPPIN Diane Paulus turns the 1972 Broadway musical into a circus spectacular, with spectacular success. The acrobatics are extraordinary, but what grounds this production is “ordinary” stuff like accomplished acting, singing, dancing. Through Jan. 20. American Repertory Theater. At Loeb Drama Center, Cambridge. 617-547-8300, www.americanrepertorytheater.org
OUR TOWN “When the theatre pretends to give the real thing in canvas and wood and metal,” playwright Thornton Wilder wrote, “it loses something of the realer thing which is its true business.” Director David Cromer’s stark production aspires to Wilder’s “realer thing” and achieves it. Through Jan. 27. Huntington Theatre Company. At Roberts Studio Theatre, Boston Center for the Arts. 617-266-0800, www.huntingtontheatre.org