{% for data in additional_data %}
  <video {{ attributes }} {% if data.poster %} poster="{{ data.poster }}" {% endif %}>
    {{ 'Sorry - your browser cannot play'|t }} {{ data.mime_type }} {{ 'videos. We recommend'|t }} <a href='http://www.google.com/chrome/'>{{ 'Google Chrome.'|t }}</a>
    <source src=" {{ data.src }} " />
  </video>
{% endfor %}