Well done. I love the message on the phone idea.
I believe hitting your expensive camera with a hammer is bad too. Hope that's in the video.
I tend to think they matter a lot but no one I watch movies with seems to catch them. I'll often stop a film and show everybody the error and I usually get yelled at for it. LOL!
Either way, when I'm editing a film we shot they drive me crazy. Losing the best take for it is probably a bad idea, though.
We've shown two movies at the local Showcase Cinemas in 1080p and it was fine. I was impressed with how good it looked.
One of my favorite movies and will always be is Videodrome. It's the movie that turned me onto Cronenberg and made him one of my favorite directors as well.
The whole movie is amazing. :)