Twelve jury members' names are read out but a Jury in Scotland has fifteen members not twelve. The trial taking place in Glasgow.
A destination board in the railway station had "Raw" listed but it should have been "Rhu".
The film is set in 1857 but the rail service from Glasgow to Helensburgh and Rhu didn't start until 1858.
When the prosecutor first walks away from addressing the jury the first time, the shadow of a boom can clearly be seen following after him across the jury.