new_contents: from flask_wtf import FlaskForm as Form
  from wtforms import StringField, BooleanField, TextAreaField
  from wtforms.validators import DataRequired, Length
  
  class EditMovieForm(Form):
      title = StringField('title', validators=[DataRequired()])
      plot = TextAreaField('plot', validators=[Length(min=0, max=2047)])
  
subject: Edit movie form, title and plot only