In the first trial, when the bailiff is swearing in Lester Wade, he instructs him to "raise your right hand" [the audio of this is clipped]. However, Lester actually places his right hand on the bible and raises his left hand. On all other occasions in the movie, witnesses actually raise their right hands (and put their left hands on the bible) when being sworn in.
After Gideon wins his second trial and leaves the courthouse a reporter asks him a question. As Gideon leaves the reporter scribbles something on his notebook. However the reporter's notebook is closed throughout the shot.