Being human and making mistakes
Firstly, let's look at the title.
Sunrise gives the impression of a new beginning, a fresh start. After the night passes, a new day can begin. In other words, a second chance. This is exactly what this film is about. A cheating husband is forgiven by his doting and loving wife, even after he almost murders her in cold blood. This may be putting it very lightly but, he made a mistake.
The dictionary definition for mistake is an error or a blunder. Now this definitely sounds too light in comparison to the 'crime' committed by this husband. However, the viewer is able to experience a sigh of relief as he realises his dreadful behaviour and does right by his wife thereafter.
Although, I find myself pondering on the following questions:
Is it really as easy as all that? In real life, to do that to a spouse yet that same day, fall back in love and be happy?
Has that man truly learned from his mistakes?
What would I do if I were the wife? I would most likely leave him and never return!