Parkes, and Walon Green (uncredited) wrote WarGames, which premiered in 1983, according to IMDb. John Badham directed the film that also had Broderick and Sheedy in the two starring roles.

WarGames is a 1983 American Cold War science ... The film stars Matthew Broderick, Dabney Coleman, John Wood, and Ally Sheedy. The film follows David Lightman (Broderick), a young hacker who ...

Fans best know Ally Sheedy from her starring in iconic 1980s movies like The Breakfast Club, St. Elmo’s Fire, and WarGames. While Sheedy has continued to act, most recently appearing in an ...