For joshuajonah in #django IRC

forms.py

>>> from django.forms import Form
>>> from django.contrib.auth import get_user_model
>>> from django.forms.models import ModelMultipleChoiceField
>>> class MyForm(Form):
>>>     field = ModelMultipleChoiceField(queryset=get_user_model().objects.all())
>>> myform = MyForm(initial={'field': [1]})
>>> myform.as_p()
# this should include 
# <select multiple="multiple" id="id_field" name="field">\n<option value="1" selected="selected">kezabelle</option>