Alex Gibney’s documentary about Steve Jobs debuted at the South by Southwest film fest in Austin this weekend, and the first reviews have called film a “coolly absorbing, deeply unflattering portrait of the late Silicon Valley entrepreneur.”

Eddy Cue took to Twitter this morning to blast the Oscar-winning director’s film, saying he was “very disappointed in Steve Jobs: The Man in the Machine.”

Here’s what Cue had to say about the documentary:

The director of a new documentary about Steve Jobs says his film won’t be a straightforward biography of the late Apple leader. Instead, Alex Gibney says he “set out to do an impressionistic film, structured in a way like Citizen Kane.”

He also says his film, titled Steve Jobs: The Man in the Machine, will delve into Jobs’ character and whether he abandoned his counterculture values after turning Apple into a tech behemoth.