Why is MySQL treating é the same as e?

I'm storing Unicode strings in a MySQL database with a Django web application. I can store Unicode data fine, but when querying, I find that é and e are treated as if they were the same character:

In [1]: User.objects.filter(last_name='Jildén')
Out[1]: [<User: Anders Jildén>]

In [2]: User.objects.filter(last_name='Jilden')
Out[2]: [<User: Anders Jildén>]

This is also the case when using the MySQL shell directly:

mysql> select last_name from auth_user where last_name = 'Jildén';
+-----------+
| last_name |
+-----------+
| Jildén   |
+-----------+
1 row in set (0.00 sec)

mysql> select last_name from auth_user where last_name = 'Jilden';
+-----------+
| last_name |
+-----------+
| Jildén   |
+-----------+
1 row in set (0.01 sec)

Here are the database charset settings:

mysql> SHOW variables LIKE '%character_set%';
+--------------------------+------------------------------------------------------+
| Variable_name            | Value                                                |
+--------------------------+------------------------------------------------------+
| character_set_client     | latin1                                               |
| character_set_connection | latin1                                               |
| character_set_database   | utf8                                                 |
| character_set_filesystem | binary                                               |
| character_set_results    | latin1                                               |
| character_set_server     | latin1                                               |
| character_set_system     | utf8                                                 |
| character_sets_dir       | /usr/local/Cellar/mysql/5.1.54/share/mysql/charsets/ |
+--------------------------+------------------------------------------------------+

here's the table schema:

CREATE TABLE `auth_user` (
    `id` int(11) NOT NULL AUTO_INCREMENT,
    `username` varchar(30) CHARACTER SET utf8 NOT NULL,
    `first_name` varchar(30) CHARACTER SET utf8 NOT NULL,
    `last_name` varchar(30) CHARACTER SET utf8 NOT NULL,
    `email` varchar(200) CHARACTER SET utf8 NOT NULL,
    `password` varchar(128) CHARACTER SET utf8 NOT NULL,
    `is_staff` tinyint(1) NOT NULL,
    `is_active` tinyint(1) NOT NULL,
    `is_superuser` tinyint(1) NOT NULL,
    `last_login` datetime NOT NULL,
    `date_joined` datetime NOT NULL,
    PRIMARY KEY (`id`),
    UNIQUE KEY `username` (`username`)
) ENGINE=InnoDB AUTO_INCREMENT=7952 DEFAULT CHARSET=utf8 COLLATE=utf8_bin

and here are the options I'm passing via Django's DATABASES setting:

DATABASES = {
    'default': {
        # ...
        'OPTIONS': {
            'charset': 'utf8',
            'init_command': 'SET storage_engine=INNODB;',
        },
    },
}

Note that I have tried setting the table collation to utf8_bin, with no effect:

mysql> alter table auth_user collate utf8_bin;

mysql> select last_name from auth_user where last_name = 'Jilden';
+-----------+
| last_name |
+-----------+
| Jildén   |
+-----------+
1 row in set (0.00 sec)

How can I get MySQL to treat these as different characters?