On my way to Berlin

In less than 3 hours, I'll be on my way to Berlin. Actually, first of all, I have to go to Vienna, where I then go to the airport, where I will take a plane to Berlin. At around 6 pm I should have reached Berlin. Checking out will take some time, so I expect to leave Berlin-Tegel not before 7 pm. Then first I will leave all my stuff at the hotel, and try to get my ticket for tomorrow. Without getting a ticket today, it will be extremely hard to get to the opening event early enough. The opening event is a must, since the official documentation movie about the Chaos Communication Camp will be presented, which I just have to see.