'Avengers: Infinity War' is rumored to cost $500 million each for part 1 and part 2. It is said to have a combined budget of a total of $1 billion with $200 million going to Robert Downey Jr. alone. Director James Gunn expressed that he is more concerned with his own film 'Guardians of the Galaxy Vol. 2' than trying to tie it in the 'Avengers' series.

According to Bleeding Cool, the two-part installment for the conclusion of Phase Three of the Marvel Cinematic Universe (MCU) will have a total production budget of $1 billion. The cost will be divided among its cast and crew - with $200,000 going to leading man Robert Downey Jr. alone.

It was previously reported that Downey Jr. is the world's highest paid actor with an $80 million salary. The 50-year old, who plays Tony Stark a.k.a. Iron Man in the MCU, has been declared Forbes' highest paid leading man for three consecutive years. He was also rumored to have commanded $40 million for his work in 'Captain America: Civil War'.

Another article by ComicBook.com noted that 'Avengers: Infinity War' will be filmed back-to-back for nine consecutive months with the budget seeming reasonable enough to fuel screenwriters, producers, the director as well as principal cast members. However, the report remains unofficial especially since there is no script to be had as of the present.

Meanwhile, writer-director James Gunn expressed his desire to do his own thing for the sequel of 'Guardians of the Galaxy'. According to Collider, Gunn was intent on making his own film stand out from the rest and will stick to an independent story.

He said, "Everything's going to be different in the 'Infinity Wars.' I'm a lot more concerned with 'Vol. 2' than I am with 'Infinity Wars.' The way the movie ['Vol. 2'] is structured and made - it really is a story unto itself. It's not about leading up to anything else. It's about the Guardians and their lives."

It was previously reported that Gunn's film may finally take Thanos as a central villain to aid in the build-up of events leading up to the 'Infinity War'. His upcoming sequel is intended as the third installment in MCU's Phase Three.

'Avengers: Infinity War' will be split into two films. Part 1 is scheduled to hit theaters on May 4, 2018 while part 2 will debut a year later on May 3, 2019. The first in the back-to-back installment is directed by Joseph and Anthony Russo and is produced by Marvel president Kevin Feige.