Abdul Baha watching a Film and Shoghi Effendi 'Paris Opera'.

‘Abdu’l-Bahá repudiated suggestive plays, gross movies. As Louis Gregory told us, the Master had attended a film in the Holy Land with two little boys of the Household, and disapproving of the picture, had taken the boys by the hand and left. We were also told, by other believers, that Shoghi Effendi attended the Paris opera alone, and what he saw on the stage impelled him to rise and walk out.

http://bahairesearch.com/english/Baha%27i/Baha%27i_Studies/Marzieh_Gail/Arches_of_the_Years.aspx