실행결과가 두 번 나오는데 뭐가 잘못 됐는지 모르겠습니다.

from pymongo import MongoClient
client = MongoClient('mongodb+srv://test:sparta@cluster0.elmvao9.mongodb.net/cluster0?retryWrites=true&w=majority')
db = client.dbsparta

score = db.movies.find_one({'title': '가버나움'})
star = score['star']

all_movie = list(db.movies.find({'star':star}, {'_id': False}))

for i in all_movie:
    if i['star'] == star:
        print(i['title'])