According to Farrow, actor Sidney Blackmer (who played coven leader Roman Castevet) once said on set “No good will come of all this ‘Hail Satan’ business,” and apparently he wasn’t the only one who thought so. William Castle later became convinced the film was cursed. Shortly after production he suffered gallstones to such a severe extent that he required surgery. As he recovered from that illness, Rosemary’s Baby composer Krzysztof Komeda suffered an accidental fall that led to a coma and, eventually, his death. Then, in the summer of 1969, actress Sharon Tate—Polanski’s wife—was infamously murdered by the Manson Family. For Castle, it all added up.
Gale Nolan, the headmaster, begins an investigation into the suicide at the request of the Perry family. Attempting to escape punishment for his own membership in the Dead Poet's Society, Richard Cameron tells Nolan that Neil's death is entirely Keating's fault. He names Overstreet, Meeks, Pitts, Anderson, Dalton and Perry as his fellow members. Charlie confronts him, but Cameron urges the others to put the blame on Mr. Keating. Charlie refuses and punches Cameron, which causes him to be expelled. Each of the boys is called to Nolan's office to sign a letter attesting that Cameron's version of events is true. When it is Todd's turn he does not want to sign but does so when he sees that the others have signed already.
Of all the Causes which conspire to blind
Man's erring Judgment, and misguide the Mind,
What the weak Head with strongest Byass rules,
Is Pride, the never-failing Vice of Fools.
Whatever Nature has in Worth deny'd,
She gives in large Recruits of needful Pride;
For as in Bodies, thus in Souls, we find
What wants in Blood and Spirits, swell'd with Wind;
Pride, where Wit fails, steps in to our Defence,
And fills up all the mighty Void of Sense!
If once right Reason drives that Cloud away,
Truth breaks upon us with resistless Day;
Trust not your self; but your Defects to know,
Make use of ev'ry Friend--and ev'ry Foe.