"Night Boat to Dublin" should have been a lot better. The storyline is an interesting one on the written page and Robert Newton is an underrated leading man.
The plot is thin when it comes to sustaining any kind of narrative and the pace tends to drag its own feet. Some scenes feel as though they have been merely cobbled together.
Even so, there is plenty to like. Robert Newton does well as the Government operative who goes undercover as hired help for the villains of the film. The classical theatre actor, Marius Goring, is completely wasted in his one scene appearance. His screen time amounts to about three minutes, if that.
There is some good photography and this creates some tension, especially when Robert Newton and his colleagues are searching for incriminating evidence.
You won't find a lot of action but the ending is still good.