President Trump’s call to impose steep tariffs on movies “produced in Foreign Lands” came after he met at Mar-a-Lago over the weekend with the actor Jon Voight, whom he named a “special ambassador” to Hollywood this year.

The president’s social media post on Sunday that called for a 100 percent tariff on films produced outside the United States caused confusion in Hollywood, which has lost a great deal of local film and television production to states and nations that offer rich tax credits and cheaper labor. While few in the industry said that they understood Mr. Trump’s proposal, some worried that tariffs could cause more harm than good and called instead for federal help in the form of tax credits.

Mr. Voight and Steven Paul, his longtime manager, met with Mr. Trump over the weekend and shared their plans to increase domestic film production, according to a statement from SP Media Group, Mr. Paul’s firm. They suggested federal tax incentives, changes to the tax code, co-production treaties with other nations and infrastructure subsidies, the statement said.

The proposal also included “tariffs in certain limited circumstances,” the statement said, adding that it was under review.

Mr. Voight made the rounds of Hollywood last week, meeting with the Motion Picture Association, Hollywood’s top lobbying group; various unions; and the state representatives who are pushing bills to increase state tax credits for the film and television industries. State Senator Ben Allen, a Democrat whose district includes Hollywood, met with the actor to discuss how to increase production in the state, a representative said.

Mr. Voight emerged from those meetings with two one-page documents drafted by the M.P.A. One letter encourages lawmakers in Washington to adopt a manufacturing and production incentive to encourage more domestic employment. The other asks Congress to extend a section of the tax code that expires at the end of 2025 and allows certain film and television expenses to be deducted in the year they are incurred.