"Close Encounters of the Third Kind" wins two Academy Awards 1978

Close Encounters of the Third Kind, a Steven Spielberg blockbuster released in December 1977, won two Academy Awards at the 50th ceremony April 3, 1978.   It won Best Cinematography for Vilmos Zsigmond, and a Special Achievement Award for sound effects editing for Frank Warner.

It was nominated for Best Director for Spielberg, Best Supporting Actress for Melinda Dillon, Best Original Score for John Williams (he lost to himself), Best Sound, Best Art Direction, Best Film Editing, and Best Visual Effects.  It lost out to Star Wars in every category except Cinematography. 

"Raiders of the Lost Ark" wins 4 Oscars + 1 1982

Raiders of the Lost Ark, the mega-hit from Steven Spielberg and George Lucas that turned the movie industry on its head, won 4 Academy Awards plus a Special Achievement Academy Award March 29, 1982.  It had been nominated for eight.

It won Oscars for Best Sound, Best Art Direction, Best Film Editing and Best Visual Effects.  It received the Special Achievement Academy Award for Sound Effects Editing.

It had also received nominations for Best Picture, Best Director (Spielberg), Best Original Score (John Williams), and Best Cinematography.