The film's original director Ron Howard insisted on a $200 million shooting budget and had a disagreement with Disney, so Howard and star Russell Crowe quit. In the end, Hancock directed, Howard became co-producer, and the shooting budget was reduced to $95 million
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As an epic film, the scale of the filming can be imagined. During lunch time alone, 700 to 800 people ate at the same time; the battlefield scene in the film is in Austin, Texas, and the temperature difference spans as high as 45 degrees, which consumes only the last few weeks. There are as many as 275,842 bottles of water, and 70 tons of ice used for cooling; the film location covers an area of 51 acres and is the largest and most expensive independent studio in North America; production designer Michael Colombris leads the construction The team built more than 70 buildings; costume designer Daniel Orlandi led the team to design and oversee the production of 4,000 costumes; a total of 700 guns appeared in the film, and armorer Fern Croft said that every gun in the film was Completely consistent with historical facts, they are all real firearms. A total of 90,000 shots of black powder were used in all engagement scenarios, and no accidents ever occurred
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