4 Pa. Stat. § 65
It shall be unlawful at any motion picture exhibition conducted or operated, under the provisions of this act, to provide for any form of entertainment, except the exhibition of motion pictures and sound motion pictures and any orchestral or other instrumental musical or mechanical musical accompaniment, prelude, playing or selection in connection with or incidental thereto, and any person or any member or agent of any copartnership or association, or any member or officer of any corporation who shall provide or furnish or assist in providing or furnishing any other form of entertainment in such motion picture exhibitions shall be guilty of a misdemeanor, and in the proper court shall be punished by a fine of one hundred dollars ($100.00). Each Sunday's providing, furnishing, conducting, staging, managing, operating or engaging in furnishing any form of entertainment, forbidden under this act, shall constitute a separate offense hereunder.
4 P.S. § 65