Bootstrap Carousel Implementation in Django

Try this:

<div class="carousel-inner">
{% for review in reviews|slice:":3" %}
    {% if forloop.first %}
        <div class="active item">
    {% else %}
        <div class="item">
    {% endif %}
        <blockquote>
            <p>{{ review.description }}</p>
        </blockquote>
        <label>{{ review.business }}</label>
    </div>
{% endfor %}
</div>

forloop.first is True if this is the first time through the loop