Title: Science fiction convention
Content:  The precise time and place of the first science fiction convention is a matter of some dispute. The idea and form was clearly anticipated in Robert Bloch's short story about a large convention of writers, "The Ultimate Ultimatum" (Fantasy Magazine, August 1935), "It was a big convention. Lovecraft was there." Sometime in 1936, a group of British fans made plans to have an organized gathering, with a planned program of events in a public venue in early 1937. However, on October 22, 1936, a group of six or seven fans from New York City, including David Kyle and Frederik Pohl, traveled 
Title: 62nd World Science Fiction Convention
Content: Brian Aldiss ; Kevin J. Anderson ; Lois McMaster Bujold ; Jack L. Chalker ; John Clute ; Neil Gaiman ; Elizabeth Hand ; Harry Harrison ; George R.R. Martin ; Larry Niven ; Robert Sheckley ; Robert Silverberg ; Michael Swanwick ; Harry Turtledove ; Connie Willis In addition to the guests of honor, notable science fiction writers participating to the convention included:
Title: 71st World Science Fiction Convention
Content:  The Guests of Honor were editor Ellen Datlow, author James Gunn, fan Willie Siros, author Norman Spinrad, and artist Darrell K. Sweet. (Although Sweet died in December 2011, he remained one of the convention's honored guests.) Paul Cornell served as Toastmaster for the event. Special guests were musician Leslie Fish and author Joe R. Lansdale. Programming included hundreds of panels, screenings, concerts, signings, meetings, and other events on topics including women in aerospace, Doctor Who, molecular gastronomy, the Vatican library, the histories of both science fiction and its fandom, plus readings of current work by attending authors. More than a dozen panels focused on Texas and its role in speculative fiction plus nearly as many on the life and work of author Robert E. Howard. The conventions several hundred program participants included authors Lois McMaster Bujold, George R.R. Martin, Jo Walton, Howard Waldrop, and Bradley Denton plus artists John Picacio, Vincent Villafranca, and NASA astronaut Cady Coleman.
Title: 56th World Science Fiction Convention
Content: Convention Chair: Peggy Rae Pavlat 
Title: 48th World Science Fiction Convention
Content:  The guests of honour for the convention were Joe Haldeman, Wolfgang Jeschke and Harry Harrison, with Chelsea Quinn Yarbro as Toastmaster and Andrew I. Porter as Fan Guest of Honour. The organising committee was chaired by Kees van Toorn. The total membership of the convention was 3580, despite the preparations for the Gulf war which deterred many Americans from traveling. This was the first Worldcon after the fall of the Berlin Wall, so was the first convention which many fans, writers and editors from Eastern European countries were able to attend. The convention was opened by the then Minister of Cultural Affairs of the Netherlands, and the Hugos were presented by the U.S. Ambassador to the Netherlands.
Title: 24th World Science Fiction Convention
Content:  The 24th World Science Fiction Convention, also known as Tricon, was held 1–5 September 1966 at the Sheraton-Cleveland in Cleveland, Ohio, United States. Officially, the convention was hosted by three cities in the region: Cincinnati, Cleveland, and Detroit, — hence the name "Tricon". The three co-chairmen of that Worldcon each represented their city's fandom; they were Ben Jason of Cleveland, Howard DeVore of Detroit, and Lou Tabakow of Cincinnati. The guest of honor was L. Sprague de Camp and the toastmaster was Isaac Asimov. Total attendance at Tricon was approximately 850. Of special note: At Tricon, Gene Roddenberry premiered both pilot episodes, "The Cage" and "Where No Man Has Gone Before", for his upcoming NBC TV series Star Trek.
Title: 58th World Science Fiction Convention
Content: Kevin J. Anderson ; Catherine Asaro ; David Brin ; Jack L. Chalker ; John Clute ; Esther M. Friesner ; Richard Garfinkle Elizabeth Hand ; Harry Harrison ; Paul Levinson ; George R. R. Martin ; Jack McDevitt ; Larry Niven ; Frederik Pohl Terry Pratchett ; Mike Resnick ; Robert Silverberg ; Michael Swanwick ; Connie Willis ; Gene Wolfe In addition to the guests of honor, Chicon 2000 had 613 program participants taking part in over 1000 programming items. Some of the notable science fiction writers participating to the convention included:   
Title: 14th World Science Fiction Convention
Content:  It was at this Worldcon that a group of fans (including Bob Tucker, Boyd Raeburn, Dick Eney, Ron Ellik and Ted White) who had not paid the $7 fee for the convention banquet chose to sit in the balcony and listen to the Guest of Honor speeches. Convention chair Kyle had a messenger tell the "Balcony Insurgents" that Kyle had said they could not sit there. Since almost every fan who wrote about the convention reported the incident, "Dave Kyle Says You Can't Sit Here" became a fannish catchphrase. The primary bid for the 15th World Science Fiction Convention was for London. This would be the first Worldcon outside North America, and there was a small but vocal jingoistic faction of Americans who argued for retaining the Worldcon in North America, claiming "If we let them have it they'll never give it back". Their campaign against the London proposal was opposed by other Americans, most audibly Anthony Boucher, and the London bid won by an ample margin, to loud cheers. There were reportedly petty efforts even after the vote was over to sabotage the London bid, but they failed to hinder it.
Title: Conucopia
Content:  Program participants highlighted by the convention included Harlan Ellison, Babylon 5 creator J. Michael Straczynski, authors David Brin, Larry Niven, and Harry Turtledove, plus Warner Books editor Betsy Mitchell.
Title: 7th World Science Fiction Convention
Content:  The 7th World Science Fiction Convention, also known as Cinvention, was held September 3–5. 1949, at the Hotel Metropole in Cincinnati, Ohio, United States. The Guests of Honor were Lloyd A. Eshbach (pro) and Ted Carnell (fan). Don Ford carried out the duties of Chairman, but was officially Secretary-Treasurer; Charles R. Tanner had the honorary title of Chairman. Total attendance was approximately 190; noteworthy attendees included Forrest J. Ackerman, Hannes Bok, Lester del Rey. Vince Hamlin. Sam Moskowitz, Rog Phillips, Milton Rothman, "Doc" Smith, and George O. Smith.

Question: Who was the screenwriter for The Convention?
Answer: Gene Stupnitsky.
Lee Eisenberg.