Tonight I watched 'Jackass3' and then went to the cinema and saw the final Harry Potter movie. I was tired by the end but feel satisfied that I saw it to it's conclusion in the cinema where I started with it. The circle is complete. 
What I didn't understand was the round of applause at the end. Who is that for and are they going to hear it? I don't know of people who stand in art galleries clapping like seals because they appreciate a painting. Nor do I understand the people who sit through all the twenty minutes of pre film adverts and trailers, only to go for a piss as the lights fade.