Who directed the other film about Christine Chubbuck besides Kate Plays Christine at the 2016 Sundance Film Festival?
Kate Plays Christine: Kate Plays Christine is a 2016 American documentary film written and directed by Robert Greene. Kate Plays Christine:  It is one of the two films about Chubbuck that premiered at the 2016 Sundance Film Festival, the other being "Christine". Christine (2016 film): Christine is a 2016 American-British biographical drama film directed by Antonio Campos and written by Craig Shilowich.
Antonio Campos