<p>Lionsgate U.K.&#8217;s horror-comedy &#8220;Ghosts: The Possession of Button House&#8221; debuted at the summit of the U.K. and Ireland box office, collecting £2.4 million ($3.2 million) across its opening weekend. Warner Bros.&#8217; DC horror thriller &#8220;Clayface&#8221; opened in second positi</p>