Although they spent a huge amount of money on the film, they were unsuccessful.
-> In spite of spending a huge amount of money on the film, they were unsuccessful
Cách này của bạn cũng đúng ạ vì sao despite/ in spite of + Ving/ N
C2: In spite of the fact that they spent a huge amount of money on the film, they were unsuccessful.
Bạn có thể tham khảo cách 2 nhé, chúc bạn hok tốt~