
dauern
to last
To take a certain amount of time or extend over a certain period of time.
Die Zugfahrt von Hamburg nach München dauert etwa sechs Stunden.
The train journey from Hamburg to Munich lasts about six hours.
to last
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to last
To take a certain amount of time or extend over a certain period of time.
Die Zugfahrt von Hamburg nach München dauert etwa sechs Stunden.
The train journey from Hamburg to Munich lasts about six hours.

to feel sorry for
Used with a dative object to express pity or regret for someone. This usage is rather elevated or outdated.
Der arme Kerl dauert mich wirklich, wie er da im Regen steht.
I really feel sorry for the poor guy, standing there in the rain like that.
'Dauern' (to last) is very often used with the impersonal pronoun 'es' (it) as the subject. This is especially common in questions and general time statements.
Wie lange dauert es noch bis zum nächsten Halt?
How much longer is it until the next stop?
The duration of an action or event is in the accusative. The subject of the sentence is the thing that takes time.
Der Film dauert fast drei Stunden.
The film lasts almost three hours.
In the rare meaning 'leidtun' (to make someone feel sorry), the person who feels pity is in the dative. The subject of the sentence is the person or thing one feels sorry for.
Das verletzte Tier dauert mich sehr.
I feel very sorry for the injured animal.
The meaning 'leidtun' (to make someone feel sorry) or 'Mitleid erregen' (to arouse pity) is outdated and is now used only in literary or very elevated contexts. It practically does not occur in modern everyday speech.
Deine traurige Geschichte dauert mich.
Your sad story moves me to pity.
to go
Gehen can indicate the duration of certain events or offerings, but its use depends more heavily on the usual phrasing. Dauern refers to a period of time in general and therefore fits more situations. With a film, both words are possible.

Der Film dauert zwei Stunden.
The film lasts two hours.
Der Film geht zwei Stunden.
The film runs for two hours.