Among those who have associated with some of his projects are such artists as : Mikhail Baryshnikov , Werner Herzog , Annie Leibovitz , Miloš Forman , Volker Schlöndorff , Twyla Tharp , Peter Beard , Marcel Marceau , Paul Auster , Paul Winter , Debra Winger , Robin Williams and Sting . Director James Signorelli assisted with creation of the book '' To Reach the Clouds '' ( 2002 ) , about the Twin Towers walk . Petit not only wrote about his feat , and events that led to the performance , but also expressed his feelings following the September 11 attacks , during which the Twin Towers were destroyed . He wrote that on that morning , " My towers became our towers . I saw them collapse – hurling , crushing thousands of lives . Disbelief preceded sorrow for the obliteration of the buildings , perplexity descended before rage at the unbearable loss of life . " Petit paid tribute to those who were killed and supported rebuilding the towers , promising that " When the towers again twin-tickle the clouds , I offer to walk again , to be the expression of the builders ' collective voice . Together , we will rejoice in an aerial song of victory . " A different complex of buildings has been developed on the site , and does not offer this opportunity
September 11 attacks
September 11 attacks
Philippe Petit