Cross' second play, Strip the Willow, was to make a star out of his future wife, Maggie Smith, though the play was staged only in the regions, never receiving a London production. In 1962, he translated Marc Camoletti's French farce Boeing Boeing, which had a lengthy run in the West End. In 1964, he directed the play in Sydney. Another success was Half a Sixpence, a musical comedy based on the H.G. Wells novel Kipps for which he wrote the book. This opened in 1963, and like his first play, ran in London for more than a year.