Melanie Griffith is thought to be up for J.R.'s alcoholic wife Sue Ellen ( originally played by Linda Gray) and Burt Reynolds for Larry Hagman's legendary role as J.R. Ewing. 'We want to make a big all-star, flashy, go-for-it version of the TV series,' said screenwriter Robert Harding, who hopes to distil 357 one-hour episodes into a two-hour movie.