AT THE MOVIES, Warren Beatty plays a dead rich guy in his comedy smash Heaven Can Wait. IN MUSIC, the soundtrack to Grease continues its run at No. 1 on the Billboard album chart. IN BOOKSTORES, James A. Michener’s Chesapeake edges out its corpulent counterpart, Herman Wouk’s War and Remembrance, atop Publishers Weekly’s fiction best-seller list. AND IN THE NEWS, one month after signing the Camp David accord, in hopes of ending decades of animosity, Egypt’s Anwar Sadat and Israel’s Menachem Begin are jointly awarded the Nobel Peace Prize.