Bioshock Infinite Easter Eggs

I was playing Bioshock Infinite for the 5th time, and I noticed an Easter eggs that I missed the first few play-throughs that I'm sure you want to know about.

In Monument Tower you can see Elizabeth opening her first tear which shows Paris in 1980s.   In the background there is a poster that says "Revenge of the Jedi".
 

In December of 1982 George Lucas changed the movie title to "Return of the Jedi".  This scene foreshadowed to the player that Elizabeth can open tears into alternate worlds such as in this alternate world where George Lucas did not change the title of the movie.