通过ListField（ReferenceField）和parants id进行查询

Question

我有这个型号：

class Group(BaseDocument):
    movies = ListField(ReferenceField('Movie'), required=False)
    season = IntField()

class Movie(MovieBase):
    season  = IntField() 
    episode = IntField() 

我想要电影那个季节是5而电影父母id（组）是parent_id，我该怎么做？