Watched Planes, Trains and Automobiles again this week for the umpteenth time.  There are so many funny scenes in this movie, if you have not watched it, I highly  recommend it.  
John Candy and Steve Martin at their best!  One laugh after another, nonstop.
The end gets me every time.  I can relate a lot to the role Steve Martin played, for my life was on the road five days a week for many years, home on weekends only.  Dashed from a client site to an airport to catch many flights in the nick of time, fighting all kinds of harsh weather, traffic conditions, etc.