#show.html
    {% for showtime in showtimes %}
        <div class="row">
            <div class="medium-11 medium-centered columns">
                <div class="panel callout radius">
                    Кинотеатр: {{ showtime.showtime_place }}<br>
                    Дата: {{ showtime.showtime_dates }}<br>
                    Время: {{ showtime.showtime_times }}<br>
                    Формат: {{ showtime.showtime_format }}<br>
                </div>
            </div>
        </div>
    {% endfor %}

#models.py
class Showtime(models.Model):
    showtime_dates = models.CharField('Date', max_length=30)
    showtime_times = models.CharField('Time', max_length=30)
    showtime_format = models.CharField('Format', max_length=4, blank=True)
    showtime_place = models.ForeignKey('app_places.place', verbose_name='Place')
    showtime_show = models.ForeignKey(Show, verbose_name='Show name')

#views.py
def show(request, show_id=1):
    return render_to_response('app_shows_and_times/show.html',
                            {'show': Show.objects.get(id=show_id),
                            'showtimes': Showtime.objects.filter(showtime_show_id=show_id)})

   {% regroup showtimes by showtime.showtime_place as cinema_place %}
    <ul>
        {% for showtime.showtime_place in cinema_place %}
            <li>
                {{ showtime.showtime_place.grouper }}
                    <ul>
                        {% for item in showtime.showtime_place.list %}
                            <li>
                                {{ item.showtime.showtime_dates }}: {{ item.showtime.showtime_times }}
                            </li>
                        {% endfor %}
                    </ul>
            </li>
        {% endfor %}
    </ul>

    {% regroup showtimes by showtime_place as cinema_places %}
    <ul>
        {% for cinema in cinema_places %}
            <li>
                {{ cinema.grouper }}
                <ul>
                    {% regroup cinema.list by showtime_dates as cinema_dates %}
                    {% for date in cinema_dates %}
                        <li>
                            {{ date.grouper }}
                            <ul>
                                {% for time in date.list %}
                                    <li>
                                        {{ time.showtime_times }}
                                    </li>
                                {% endfor %}
                            </ul>
                        </li>
                    {% endfor %}
                </ul>
            </li>
        {% endfor %}
    </ul>

    {% regroup showtimes by showtime_place as cinema_places %}
    <ul>
        {% for cinema in cinema_places %}
            <li>
# Из {{ cinema.grouper }} я хочу сделать ссылку, 
# но  {{ showtime_place_id}} я могу получить только из цикла ниже {% for time in date.list %},
# так как в data.list находятся данные всех полей, если я правильно понимаю
                <a href="cinema/{{ showtime_place_id}}">{{ cinema.grouper }}</a> 
                <ul>
                    {% regroup cinema.list by showtime_dates as cinema_dates %}
                    {% for date in cinema_dates %}
                        <li>
                            {{ date.grouper }}
                            <ul>
                                {% for time in date.list %}
                                    <li>
                                        {{ time.showtime_times }}
                                    </li>
                                {% endfor %}
                            </ul>
                        </li>
                    {% endfor %}
                </ul>
            </li>
        {% endfor %}
    </ul>

    def get_absolute_url(self):
        from django.core.urlresolvers import reverse
        return reverse('app_places.views.cinema', args=[str(self.id)])