I am an annoyed person who keeps getting ERROR 50

I am not playing a game for points - I am a disgruntled customer who wants to watch the rest of my rented movie. I don't want to make friends with people - I WANT TO WATCH MY MOVIE

Apple could not POSSIBLY make accessing help more convoluted and difficult.

Here's my problem: I rented a movie - it stops downloading part way through - it says "make sure you can access the internet" Well how stupid would I have to be to NOT be hooked into the internet. Well HOW COULD I BE WRITING TO YOU IF I WAS NOT HOOKED INTO THE INTERNET. I keep getting Error 50 - What does that mean?

Why is there no number you can call or a chat with your support people? RIDICULOUS