how is this incorrect

from sqlalchemy import create_engine, Column, Integer, String
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker
Session=sessionmaker(bind=engine)
session=Session()


engine = create_engine(‘sqlite:///movies.db’, echo=False)
Base = declarative_base()


class Movie(Base):
    __tablename__ = ‘movies’

    id = Column(Integer, primary_key=True)
    movie_title = Column(String)
    genre = Column(String)

if __name__=='__main__':
    Base.metadata.create_all(engine)
    new_movie=Movie(id=124, movie_title="New Day",genre="mystery")
    session.add(new_movie)
    session.commit()