Simple edit form

%h1 Edit Existing Movie

= form_tag movie_path(@movie), :method => :put do

  = label :movie, :title, 'Title'
  = text_field :movie, 'title'

  -# ...same as new.html.haml!
  -# Soon we will see a way to DRY it out.
  -# ....

  = submit_tag 'Update Movie Info'