Displaying images "not featured" with featured images in Django template language - django

Question

I am trying to display small thumbnail under featured images using django template language but for some reason main image displays fine but not small image. Idea is to display one featured image and rest as "not featured" images.
My single-page code to display "Featured Images" with "Not Featured" images is given below.
{% extends 'base.html' %}
{% block content %}
<h1>{{ product.title }}</h1>
{% for img in images %}
{% if img.featured %}
<h1>Featured</h1>
<img class='img-responsive' src="{{ MEDIA_URL }}{{ img.image }}"/>
{% else %}
<div class="col-xs-6 col-md-3">
<a href="#" class="thumbnail">
<img class='img-responsive' src="{{ MEDIA_URL }}{{ img.image }}"/>
</a>
</div>
{% endif %}
{% endfor %}
{% endblock %}
Please advise.
My models.py is....
from django.core.urlresolvers import reverse
from django.db import models
class Product(models.Model):
title = models.CharField(max_length=120)
description = models.TextField(null=True, blank=True)
price = models.DecimalField(decimal_places=2, max_digits=100, default=29.99)
sale_price = models.DecimalField(decimal_places=2, max_digits=100, null=True, blank=True)
slug = models.SlugField(unique=True)
timestamp = models.DateTimeField(auto_now_add=True, auto_now=False)
updated = models.DateTimeField(auto_now_add=False, auto_now=True)
active = models.BooleanField(default=True)
def __unicode__(self):
return str(self.title)
class Meta:
unique_together = ('title', 'slug')
def get_price(self):
return self.price
def get_absolute_url(self):
return reverse('single_product', kwargs={'slug': self.slug})
class ProductImage(models.Model):
product = models.ForeignKey(Product)
image = models.ImageField(upload_to='products/images/')
featured = models.BooleanField(default=False)
thumbnail = models.BooleanField(default=False)
active = models.BooleanField(default=True)
updated = models.DateTimeField(auto_now_add=False, auto_now=True)
def __unicode__(self):
return self.product.title

Answer 1

All the images were set as featured and that was causing issue. Thanks for help #f43d65. Also consulted project on Github at: https://github.com/codingforentrepreneurs/ecommerce/blob/master/ecommerce/templates/products/single.html.

Answer 2

Try to replace
{{ MEDIA_URL }}{{ img.image }}
to
{{ img.image.url }}