Can we draw the following hypothesis from the context? 

Context:

Whiskey School is a 2005 drama film starring Olympia Dukakis, Mary Stuart Masterson, Alexandra Eitel, Thomas Flanagan, Carlin Glynn, Lainie Kazan, Gary Swanson, Denise Lute, Mario Macaluso, David Margulies and directed by Peter Masterson and based on the play "Intervention" by Jo Ann Tedesco. The film is distributed by Warner Bros. and Polychrome Pictures.

Hypothesis: Whiskey School was the first movie directed by Peter Masterson.
It's impossible to say