Columbus worked as a screenwriter with Steven Spielberg 's Amblin Entertainment , working on Gremlins ( 1984 ) , The Goonies ( 1985 ) and Young Sherlock Holmes ( 1985 ) .
Columbus worked as a screenwriter with Steven Spielberg 's Amblin Productions , working on Gremlins ( 1984 ) , The Goonies ( 1985 ) and Young Sherlock Holmes ( 1985 ) .