American Repertory Ballet closes its 2011-2012 season with a feast of exciting and enchanting works.  The program will be headlined by excerpts from Douglas Martin's new Romeo and Juliet, including ballroom ensemble dances and the balcony pas de deux.  Celebration will also feature ARB repertory favorites, including Gerald Arpino's buoyant, tarantella-inspired Confetti, Patrick Corbin's critically acclaimed Follia, and Mary Barton's sprightly and innovative Straight Up with a Twist.