PAVILION, SELSEY. FOUR top actors are in "MISTER ROBERTS," a screen version of the successful stage play. The film stars Henry Fonda, James Cagney, William Powell, and Jack Lemmon in a happy story about life aboard a naval cargo ship in a lonely corner of the Pacific where the enemy rarely puts in an appearance-and women are even rarer. The film heralds the return to the screen of Henry Fonda after seven years' retirement. He again plays the part of "Mister Roberts," which he performed so well before record-breaking crowds on the Broadway stage. The action takes place on board a naval cargo ship, U.S.S. Reluctant. Lieut. Roberts second-in-command, yearns for more active sea duty and in his efforts to be transferred to a fighting ship has incurred the displeasure of his captain, tyrannically portrayed by James Cagney. "EAST OF EDEN" starring Julie Harris, James Dean and Raymond Massey, is the story of the two sons of Adam Trask, a farmer in Salinas, California. Aron is a likeable normal youngster interested in farming and his girl Abra. The other son, Cal, is neurotic, blindly striving for love and understanding and his devotion to his brother struggles with resentment at Aron's place in Adam's affections. Doris Day and Frank Sinatra are teamed together for the first time in the romantic musical drama "YOUNG AT HEART" which incorporates nine hit tunes. Gig Young, Ethel Barrymore and Dorothy Malone are also starred in the WarnerColor production. In a quiet little Connecticut town live the Tuttle family, Gregory Tuttle, who plays the flute, his three charming and musically-inclined daughters Laurie, Fran and Amy and their spinster Aunt Jessie. When the handsome young composer Alex Burke is invited to board with the family while he writes a musical for the New York stage, all three sisters think they are in love with him, although Fran is already engaged, and a local youngster, Ernest Nichols, is sighing his heart out for Amy. Alex has eyes for Laurie and under a romantic moon at a beach party, tells her that he loves her.