anchor.diff:        <div class="form-group">
           <%= f.label :name %>
           <%= f.text_field :name, class: 'form-control' %>
  +      </div>
  +      <div class="form-group">
  +        <%= f.label :url %>
  +        <%= f.text_field :url, class: 'form-control' %>
         </div>
         <div class="form-group">
           <%= f.label :tagline %>
  
positive.code: 
  <div class="row">
    <div class="col-sm-12">
      <h3>Merge with...</h3>
    </div>
  
  
negative.code:   Edit <small><%= @film.name %></small>
  <% end -%>
  
  <div class="row">
    <div class="col-sm-12">
      <h2>Film Details</h2>
  