Tell if a Django Field is required from template
{% if field.field.required %}
From this snippet
I usually write out the html for each of my form elements, so I have a little more control over each one. Then you can add an * for required or REQUIRED!!.
<p><label>Title: *<br />
{% if form.title.errors %}<ul class="errorlist">{{ form.title.errors }}</ul>{% endif %}
{{form.title}}
</label></p>
<p><label>Category:<br />
{% if form.category.errors %}<ul class="errorlist">{{ form.category.errors }}</ul>{% endif %}
{{form.category}}
</label></p>