The cork should not be in the bottle. Since space is a vacuum the difference in pressure from inside the bottle to outside the bottle would cause the cork to pop out. A crash is heard with the bottle breaks on the side of the ship. Since space is a vacuum sounds waves are unable to travel and, therefore, no sound should be heard. When the bottle breaks, liquid champaign flies everywhere.
Space is very cold, much colder than the freezing point of champaign.
The champaign should be frozen in the bottle. If you stick a spoon in the tines of a fork you can balance them on the edge of a glass using a toothpick. Once balanced, you can burn away the opposite end of the toothpick and the whole thing remains balanced. So while we might initially think that the entire weight of the fork and spoon are being balanced by nothing but a small bit of toothpick, the mass of the fork and spoon is actually distributed on both sides of the balance point. The balance point is at the center of mass of the system.