How to create a filter from ManyToMany and contains in Django?

Question

Django

I have these models:

class Model1(models.Model):
    ...
class Model2(models.Model):
    m2m_field = models.ManyToManyField(Model1)

In views I get the following data:

m1 = Model1.object.get(...) #он просто у меня есть
m2 = Model2.objects.all()

How can I create a filter like :
x = m2.filter(m2m_field__contains=m1)
Well, the trick is that it won’t work like that, but doing it in a cycle is wildness, big data. I googled a lot, in is also not right.
Tipo to select instances in which m2m contains this object m1.

Answer 1

Wrong doctor's decision.
Need like this:

class Model2(models.Model):
    m2m_field = models.ManyToManyField(to=Model1, related_name='second_models')

And than:

m1 = Model1.object.get(...) #он просто у меня есть
second_model_queryset = m1.second_models.all()