Making out in the theaters?

-Can you do this? Me and my girlfriend did this and well we did it for a long time:) but there was a guy behind us he looked disturbed:/ Is this right? Where else can I kiss her with out people being bitchy about it? Thnks:)Back seat, that looks so trashy if you do it in the middle of the theatre where everyone can see.
if that guy doesnt like it he can sit somewhere else.