ภาพยนตร์เรื่องใดมียอดขายเฉลี่ยสูงสุด

# Summary of movies and locations
theater_movie_summary = sales.groupby(['theater_location', 'movie_title'], as_index=False).sum()

# Get average ticket sales by movie title
avg_sale_by_movie = theater_movie_summary.____(____, as_index=False).____()

# Sort average ticket sales in descending order
movies_sorted = avg_sale_by_movie.____(____, ascending=False).reset_index(drop=True)

# Print results
____