var doc = {
   title: 'Jaws',
   year: 1975,
   director: 'Steven Spielberg',
   rating: 'PG',
   ratings: {
      critics: 80,
      audience: 97
    },
    screenplay: ['Peter Benchley', 'Carl Gotlieb']
  };

db.collection('movies').insert(doc, function(error, result) {
if (error) {
  console.log(error);
  process.exit(1);
}

  db.collection('movies').
  find({ screenplay: 'Peter Benchley' }).
  toArray(function(error, docs) {
  /*note the (.) in the ratings.audience, this is what is used to search through a nested document in the database */
    db.collection('movies').
      find({ 'ratings.audience': {'$gte': 90 }}).
      toArray(function(error, docs) {