Former lit agent-turned producer Neal Stevens is attached to exec produce “Swan Song” now in development at ITC/Polygram.Scripted by Steve Iyama and Sevasti Zographos, the telefilm is described as “Fatal Attraction” set against a classical music backdrop. Steve Gelber, senior VP of development of Polygram TV, is executive on the project. Stevens, who gave up agenting less than two years ago, is producing with writer Larry Gross the action pic “Gunshy.” The pic, starring Diane Lane, Michael Wincott and Eric Schaefer, is directed by Jeff Celntano. Initial Entertainment Group is handling foreign sales. Stevens recently completed a documentary about the Leukemia Society of America, featuring Cindy Crawford and Martin Landau.