When Nicole shuts the door to her part of the apartment to keep Michael out, the door can be heard being locked. However, there is no keyhole or lock visible on either side of the door.
Michael complains that he can't sleep because he can hear the ocean. However, Nice, on the French Riviera, only borders the Mediterranean, which is a sea, not an ocean. The nearest ocean, being the Atlantic, is at least 300 miles away.
However, his statement is understandable as the Mediterranean is very large; it sometimes is referred to as a miniature ocean and many cruise lines refer to their Mediterranean Cruises as "Ocean Voyages".
However, his statement is understandable as the Mediterranean is very large; it sometimes is referred to as a miniature ocean and many cruise lines refer to their Mediterranean Cruises as "Ocean Voyages".