In the movie section, i think it would be good if we can add a field about length of the movie. This way members can identify movies with a shorter duration as incomplete movies or movies with some scenes missing and then decide about downloading the movie.

Well, users who post movies are told to put the run time of the movie and usually they do put it. They just need to follow the rule.

I guess no one can help it if they dont put the runtime. You can always pm the uploader or reply in the thread itself asking for a runtime, if its not there.

its better if you see nfo attached with movies released by the teams
like xdr,src,desi,brg.

most of times release teams put their nfo with movies which clearly states the runtime.
rest as far as individual user is concerned.

you can suggest them to put but cant force them to follow it.