On opening night of A Behanding in Spokane , the play’s four stars—Christopher Walken, Sam Rockwell, Anthony Mackie and Zoe Kazan—didn’t attempt to explain the plot of Martin McDonagh’s new play. There are too many secrets (beyond the fact that Walken is searching for his missing appendage) that can’t be revealed in this fast-moving black comedy, so we settled for chatting about how much fun they’re having appearing together on Broadway. Before the opening night performance (on March 4 at the Gerald Schoenfeld Theatre), first-nighters such as Hugh Jackman, David Hyde Pierce and Edie Falco stopped to say hello. Take a look!