I see your “La mer” and raise you another “La mer”. A completely different song despite the same title.

Yeah, dating back to 1949 and way out of the usual line of our fare, but made a bit famous again after many decades by BioShock including it on one of their soundtracks.

If it sounds a familiar to you outside of that association, there was a famous jazz/pop cover by Bobby Darin in 1959 which turns up in a lot of odd places like movies set in historical Las Vegas and the A Life Less Ordinary soundtrack.