Scientology officials maintain that they have nothing to do with the making of the film.
Scientology officials explained that the security checks are given "to make sure they're using the tech correctly".
Scientology officials say the church has eight million members, a figure that is disputed by many who have left the church and other critics.
The protester was also arrested, after Scientology officials had made a citizen's arrest.
When asked if they were expected, according to that church account, the Scientology officials replied: "No.
Approximately 100 children attended the event, which Scientology officials stated was Presley's idea.
Scientology officials said they could not find the notes for the final two days of her life.
He states that the Scientology official said the organization would "cure him of his sexuality through auditing".
Mr. Rathbun, a senior Scientology official and member of the oversight committee, said the church had nothing to hide.
Scientology officials blamed the death on prior medical problems.