Fireman's Fund Insurance Co. insured the film "Hide and Seek." The company claimed the actor misrepresented his health when he wrote that he had never been diagnosed with or treated for prostate cancer.
According to court documents, De Niro was diagnosed with prostate cancer on Oct. 15, 2003, two days after he signed the medical certificate. De Niro underwent a prostate-gland biopsy on Oct. 10, 2003.
Los Angeles Superior Court Judge Rolf M. Treu granted De Niro's motion for summary judgment on Monday.
"This ruling vindicates what we've said all along," De Niro's attorney Robyn Crowther said. "We are pleased that the court has found that Fireman's Fund can't sue Mr. De Niro for getting cancer."
De Niro's diagnosis and resulting treatment delayed the movie production. Fireman's Fund paid Fox more than $1.8 million to cover the cost of the delay. The film was released in January 2005.