Philadelphia and Los Angeles police groups have said they will join New York City officers in a call to boycott the work of the film director Quentin Tarantino after remarks he made last weekend at a protest against police brutality.

Mr. Tarantino, an Academy Award-winning filmmaker known for a bloody crime oeuvre that includes “Reservoir Dogs,” “Pulp Fiction” and the “Kill Bill” movies, joined demonstrators in New York City on Saturday in a protest organized by RiseUpOctober. The rally called for justice for people killed by the police in shootings across the United States. In a statement on Thursday, RiseUpOctober criticized the backlash against Mr. Tarantino.

“I’m a human being with a conscience,” Mr. Tarantino, who flew in from California for the rally, was quoted by The Associated Press. “And if you believe there’s murder going on then you need to rise up and stand up against it. I’m here to say I’m on the side of the murdered.”

After Mr. Tarantino appeared at the protest, the president of the New York City Patrolmen’s Benevolent Association, Patrick J. Lynch, called for a boycott of his films, saying in a statement that Mr. Tarantino was a “cop-hater” and someone who makes a living “glorifying crime and violence.”