영상과 똑같이 코드 작성 한거 같은데 결과값이 안 뜹니다

from pymongo import MongoClient
import certifi
ca = certifi.where()
client = MongoClient('mongodb+srv://text:sparta@cluster0.qytxmse.mongodb.net/Cluster0?retryWrites=true&w=majority', tlsCAFile=ca)
db = client.dbsparta


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