A federal appeals court appeared ready on Wednesday to order a filmmaker to release at least some outtakes from his documentary about environmental litigation against Chevron Corp. in Ecuador.

Expressing skepticism about filmmaker Joseph A. Berlinger’s claim that some 600 pieces of footage from his movie “Crude” are protected by the journalist’s privilege, a panel of the 2nd U.S. Circuit Court of Appeals indicated it would uphold, at least in part, a ruling by Judge Lewis A. Kaplan granting two applications to issue subpoenas.