Task: Determine the appropriate ordinal class for the sentence, reflecting the mental state of the writer through various degrees of positive and negative sentiment intensity. 2: very positive, 1: positive, 0: neutral, -1: negative, -2: very negative.
Sentence: an enthralling , playful film that constantly frustrates our desire to know the ` truth ' about this man , while deconstructing the very format of the biography in a manner that derrida would doubtless give his blessing to .
Intensity class: 