As an AI language model, I can provide information up until October 2021, but please note that movie revenue figures are subject to change over time. Here are the top 10 highest-grossing films of 2021 up until October, along with their estimated worldwide box office revenue:

1. “F9” (Fast & Furious 9) – $716 million
2. “Shang-Chi and the Legend of the Ten Rings” – $430 million
3. “Black Widow” – $379 million
4. “Godzilla vs. Kong” – $463 million
5. “The Conjuring: The Devil Made Me Do It” – $202 million
6. “Space Jam: A New Legacy” – $160 million
7. “A Quiet Place Part II” – $296 million
8. “Jungle Cruise” – $222 million
9. “Cruella” – $233 million
10. “Free Guy” – $324 million

Please keep in mind that revenues can vary and these figures are approximate.