Watch Atlantic Full Movie Free Online 123Movies. German-language version. "Atlantic" is a drama film based on the sinking of the RMS "Titanic" and set aboard a fictional ship, called the "Atlantic". The main plotline revolves around a man who has a shipboard affair with a fellow passenger, which is eventually discovered by his wife. The ship also has aboard an elderly couple, Heinrich and Anna Thomas, who are on their anniversary cruise. Midway across the Atlantic Ocean, the "Atlantic" strikes an iceberg and is damaged to the point where it is sinking into the Atlantic. The German version was filmed at the same time as the British version, with each scene first being filmed in English for the British version, then the same scene being filmed in German by a German cast, using the same sets.