Since it was still just the previews I’d have ignored it, if he kept up during the movie maybe said something, and if he didn’t respond correctly move just like you. Really who cares what somebody does during the previews, that’s usually my signal for quick trip the bathroom to try to be “empty” for the movie.
“Since it was still just the previews I’d have ignored it, if he kept up during the movie maybe said something”
==
Yup. During the main feature it can be a royal PITA sitting behind someone who, as I noted by way of an example, is a “talker” (or, worse, a two talkers).