Form Dinamico django horinzontal span6

Forms_django.html

{% if form.non_field_errors %}
      <div class="alert alert-error"> 
          {% for error in form.non_field_errors %}
              {{error}}
          {% endfor %}     
      </div>
  {% endif %}

  <form class="form-horizontal" action="{{ form_action }}" method="post"
          enctype="multipart/form-data" id="form-novo-movimento" name="form-novo-movimento">
      {% csrf_token %}
      <div class="row-fluid">                            
          {% for form_field in form %}
              {% if not form_field.is_hidden %}
                  <div class="span6">
                      <div class="control-group {% if form_field.errors %}error{% endif %}" >
                          <label class="control-label" for="{{ form_field.id_for_label }}"><small>{{ form_field.label }}:</small></label>
                          <div class="controls">
                          {{ form_field }}
                              {% if form_field.errors %}
                                  {% for error in form_field.errors %}
                                      <p id="error_{{ forloop.counter }}_{{ form_field.auto_id }}"
                                      class="help-block">
                                          <strong>{{ error }}</strong></p>
                                  {% endfor %}
                              {% endif %}
                              {% if form_field.help_text %}
                                  <p id="hint_{{ form_field.auto_id }}"
                                  class="muted">{{ form_field.help_text|safe }}</p>
                              {% endif %}
                          </div>
                      </div>
                  </div>
              {% else %}
                  {{ form_field }}
              {% endif %}
          {% endfor %}
      </div> 
  </form>