You figure that Ellie would not dare shrink you in front of such a crowd, so you get up in disgust and start to leave. YOu can worry about her later.

However, she does an interesting thing. Before you can get more than a few feet away from her, she stares at you and shrinks you down, then causes a ghost form of yourself to keep walking away as if you were never shrunk. Your duplicate walks into the men's room and disappears, but you, unfortunately, are at ELlie's mercy.

Back to 1 inch in height...well, ELlie picks you up and puts you in her popcorn. It's probably better to be her captive though, than to be allowed to escape at your size. You'd never make it out of the theater alive. WHich is exactly what wshe whispers to you. So you simply sit slightly buried in her popcorn as she walks into the movie and sits down.