Milos Forman will receive the Film Society Award for Lifetime Achievement in Directing at the 47th San Francisco Intl. Film Festival, which runs April 15-29. Danny DeVito will present the award to Forman on April 22 at the Ritz-Carlton San Francisco.Thesp Chris Cooper is also being honored with the Peter J. Owens Award. A public presentation, including a compilation of clips from Forman’s career, an onstage interview and a screening of “Hair,” is scheduled for April 23 at the Castro Theater. Forman’s “Taking Off” and “The Firemen’s Ball” will be shown April 18 at the theater.