Searching for a moment on the show

I’m trying to find an episode that featured Mark talking about seeing a movie in the cinema that he found ridiculously unfunny. He mentioned it was only him and the usher in the cinema and says that as he walked out they acknowledged each other with an “alright” and that they both knew what had transpired in that screening (nothing). It’s such a hilarious interaction between him and Simon and I’m trying to locate this moment/episode! This might’ve been pre-take days I’m not sure. Any help would be appreciated!