William "Bill" Basch, a retired Los Angeles garment industry executive who was one of the Holocaust survivors whose stories were told in the Oscar-winning documentary "The Last Days," has died. He was 82.

Mr. Basch died of age-related causes Oct. 26 at his home in the coastal Los Angeles County area of Marina del Rey, said his grandson, Max Basch.

A survivor of the Buchenwald and Dachau concentration camps who had helped save Jews while working in the underground resistance movement in Budapest, Hungary, Mr. Basch arrived in the United States penniless in 1947 and launched a successful high-end women's apparel manufacturing business, Basch Fashions, in 1971.

He was one of five Holocaust survivors now living in the United States who were profiled in "The Last Days."

The haunting 1998 feature-length documentary, which was executive-produced by Steven Spielberg, chronicles the final days of the Jews of Hungary as they were rounded up by the Nazis in 1944 and sent to concentration camps.

"We lost a great man in Bill," said James Moll, the film's director. "When I think of Bill, I think of his bravery. He risked his life to help save other people."

In appearing in the documentary, in which the five survivors told their stories, Mr. Basch traveled with his son, Martin, to Budapest and Dachau.

"There are times when I wondered, 'Why was I saved and so many people died?' " Mr. Basch said in an interview with the BPI Entertainment News Wire in 1999. "Eventually, I came to the realization that there must be a purpose. And one of the purposes is to tell the story while I am alive and able to."

One of five children, he was born June 4, 1927, in Sasovo, a village in the Carpathian Mountains in what is now Ukraine.

In 1942, after failing to obtain American visas, Mr. Basch's store-owner father sent his three sons to different cities to increase their chances of survival.

The 15-year-old Basch moved to Budapest, where he soon joined the underground resistance movement.

After Germany invaded Hungary in March 1944 and a massive roundup of Hungarian Jews began, Mr. Basch joined the network of people working for Raoul Wallenberg, the Swedish diplomat sent to Budapest to lead a desperate effort to save as many Jews as possible.

To avoid Nazi and Hungarian militia checkpoints, Mr. Basch used the city's sewer system to deliver fabricated documents that conferred Swedish diplomatic protection to the bearer.

One day, instead of surfacing from a manhole in the courtyard of a safe house, he mistakenly surfaced outside the courtyard and encountered two Hungarian fascist militiamen.

As he ran, he blended into a group of people. But it turned out they were being marched to deportation trains bound for Buchenwald.

During the train ride, Mr. Basch and others made two failed attempts to escape through a small window in the car. Those who made it outside were immediately killed.

In the documentary, Mr. Basch recalled later making a pact with two other young men in the concentration camp to stick by one another. When one fell during a forced march and was about to be shot by a guard, Mr. Basch and the other boy stood in the way, withdrawing only when the guard threatened to shoot them too.

Revisiting and reliving his war-time past for the documentary took an emotional toll on Mr. Basch.

"I was a very sad man for a couple of months when it was over," he said in the 1999 interview. "But it is gratifying to know that the documentary will live on past my lifetime."

After settling in Los Angeles after the war, Mr. Basch married the former Rose "Holly" Branberger, a fellow concentration camp survivor with whom he had three children.

Mr. Basch's mother and one of his sisters were killed in Auschwitz; he never discovered the fate of his father or one of his brothers, said his grandson.

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