Fantastic movie but what is up with the word OZ showing up everywhere

Rating: 9/10 (16 February 2011)

Having seen an advance screening of this movie I really loved it. It was slow to start but the 2nd act really picked it up and the 3rd act was amazing. But I did notice the word OZ showing up in the background at my last count 6 times probably more. Anyone know why? The theater was packed and people really seemed to react positively to to the movie. It was as usual fun to watch the so-called bad people get what was coming to them. A great story of redemption and at asking the question do we ever really know who we are deep down inside or is it all a trick of the mind. I would highly recommend this movie to anyone who loved "Taken" or the "Bourne" movies. The car escape scenes were some of the best I have seen in a long time and worth the price of admission alone.