Did Reese-Robinson moment happen?

In the movie "42" (spoiler alert) there is a key scene when Jackie Robinson is being heckled by fans in Cincinnati. Shortstop Pee Wee Reese, from nearby Louisville, goes over to Robinson and puts his arm around him. The event has become a principal moment of the Robinson story -- a man from the south showing support for Robinson. There is even a statue at the Brooklyn Cyclones' home park commemorating the event.

But did it really happen? Brian Cronin investigates and says history is a little murky on the subject.