Extended Runs for Some Tony Nominees Broadway is often barren during summertime when it comes to plays, as their star actors return to Hollywood for film and television commitments (or go on vacation) after the Tony Awards are announced in June. But several plays have announced that they will not close as early as originally planned. On Thursday the producers of "Vanya and Sonia and Masha and Spike," starring David Hyde Pierce and Kristine Nielsen (both nominated for lead acting Tonys) and Sigourney Weaver, said they were adding four weeks of performances through July 28. The play, written by Christopher Durang, is one of four nominees for the best play Tony award, which will be announced on June 9. As for the three other best play nominees, Richard Greenberg's "Assembled Parties" extended performances on Wednesday through July 7; Nora Ephron's "Lucky Guy" has extended through July 3; and Colm Toibin's "The Testament of Mary" closed this month due to weak ticket sales. Another Broadway play, "The Nance," has added the most performances of all and is now scheduled to run through August 11. "The Nance" may not have a best play Tony nod, but it does have a star, Nathan Lane, who is a popular draw at the box office.