Francis Coppola, never a man to be still, is considering several projects now that "One From the Heart" is finished. One possibility is a film version of J.M. Barrie's classic "Peter Pan," according to the London Observer. A script is in the works by Andrew Birkin, who is utilizing elements of Barrie's own screenplay, written in the '20s. Irony here is Barrie's script was never filmed because the film company that owns the rights, Paramount, felt the script was not close enough to the play. Paramount still owns the rights and . . . they just dropped distribution rights for "One From the Heart" . . . Now in rehearsal at the Guthrie Theater in Minneapolis: "As You Like It" directed by Liviu Ciulei and starring Patti Lupone as Rosalind. Lupone won a Tony Award for her performance as "Evita." That's her you see in the TV ads for the musical . . . "The trouble is not that Abbott is a communist, or a Marxist, or anarchist, but that he is writing infantile nonsense suffused with venom . . ." Arthur Koestler, author of "Darkness at Noon," reviewing "In the Belly of the Beast" by Jack Henry Abbott in the London Times . . . Back in 1968, Englishman Peter Watkins was commissioned by the BBC to do a film about nuclear war. The result was "The War Game," a film so horrifying that it was never shown by the network. The film was released theatrically and went on to win an Oscar. But Watkins was so bitter about the BBC incident that he exiled himself from England. Now he is planning a new "War Game," which would show "in microcosm the human cost of nuclear war." Raising the $250,000 Watkins estimates the film would cost has not been easy, but a fund has been set up by Hugh Jenkins, a member of Britain's House of Lords . . . The next film for John Cleese, Monty Python's Minister of Silly Walks, will be a musical, "Privates on Parade." Based on a succesful play by Peter Nichols, "Privates" describes the adventures of an entertainment unit of the British Army in Malaya after WW II . . .