Is the movie Bridge of Spies really based on real event? Can anybody give me some kind of reference of this event in any book or Wikipedia article? I would like to confirm it myself.
Yes, it is based on real events. However, like most "based on real events" movies, some artistic liberties were taken. The story represented in the movie is mostly factual though. It stems from the 1960 U-2 incident, which you can read about here.
To see what deviations were made and read about the historical accuracy of the movie, check this page out.