That's actually one of the reasons I want to see the MetLife/Pan Am building more clearly. If it says Pan Am on the side, then then the movie is likely set in 1963ish.The description said it's a "60s inspired retro future", so it's not actually set in the '60s.
If it says MetLife, well that building didn't become the MetLife building until 1980.
Which actually brings me to wonder, in the MCU did Tony Stark buy and tear down the building on that site in order to build Stark Tower?