involving Sellers. Screenwriter Wolf Mankowitz declared that Sellers felt intimidated by Welles to the extent that, except for a couple of shots, neither was in the studio simultaneously. Other versions of the legend depict the drama stemming from Sellers being slighted, in favour of Welles, by Princess Margaret (whom Sellers knew) during her visit to the set. Welles also insisted on performing magic tricks as Le Chiffre, and the director obliged. Director Guest wrote that Welles did not think much of Sellers, and had refused to work with "that amateur". Director McGrath, a personal friend of Sellers, was punched by the actor when he complained about Sellers' on-set behaviour. Some Sellers biographies suggest that he took the role of Bond to heart, and was annoyed at the decision to make Casino Royale a comedy, as he wanted to play Bond straight. This is illustrated in somewhat fictionalised form in the film The Life and Death of Peter Sellers, based on the biography by Roger Lewis, who has claimed that Sellers kept re-writing and improvising scenes to make them play seriously. This story is in agreement with the observation that the only parts of the film close to the book are the ones featuring Sellers and Welles. In the end, Sellers's involvement with the film was cut abruptly short. Additionally, Sellers went absent for days or weeks at a time, refused to appear in his scenes with Welles and exited before all of his scenes had been shot. As a result, Sellers was unavailable for the filming of an ending and other interlinking scenes, leaving the filmmakers to devise a way to make the existing footage work without him. The framing device of a beginning and ending with Niven was created to salvage the material. Guest, who had been given the task of creating a narrative thread which would link all segments of the film, chose to use the original Bond and Vesper Lynd as linking characters. Signs of missing footage from the Sellers segments are evident at various points. Tremble is not captured on camera; an outtake of Sellers entering a racing car was substituted. In this outtake, he calls for the car, à la The Pink Panther, to chase down Vesper and her kidnappers; the next thing that is shown is Tremble being tortured. Outtakes of Sellers were also used for Tremble's dream sequence (pretending to play the piano