I Just Watched The "Hangover" for the 100th time And I Still See Something New

I've watched the movie "Hangover" for about the 100th time and still find out new things about the movie.
first, my former dentist, who is now into retirement, was in one of the pictures at the end of the movie- he was in a picture at the craps table after Allen or someone won some money.  He is the older guy with a big smile.
The other thing is that the person who played the Asian gangster, Mr. Chow, is a real life medical doctor.  Ken Jeong is a doctor in internal medicine: Ken Jeong has been blending comedy & medicine all of his life. After graduating from Duke University & attaining his MD at the University of North Carolina, Ken completed his Internal Medicine residency in New Orleans while developing a cult comedy following.
While in New Orleans, Ken won the "Big Easy Laff-off". Late NBC president Brandon Tartikoff and "Improv" founder Budd Friedman judged the competition and advised Ken to move to Los Angeles. Once residing in LA, Ken began performing regularly at the Improv & Laugh Factory. Soon after he appeared on ABC's "The View" (1997) and was named "The Funniest Doctor in America". Subsequent appearances on Comedy Central & BET cemented his reputation as a comic who appeals to a wide variety of audiences.
http://www.imdb.com/name/nm0421822/bio
I wonder what I will find out when I watch in for the 101 time?  Maybe figure out why the chicken was in the movie?