Estas son las reglas de Roger Ebert para ser un buen crítico.
Advise the readers well.
Provide a sense of the experience.
Keep track of your praise.
Do the math.
Do not make challenges you are cannot to back up.
Respect the reader's time.
Respect the reader's money.
Beware of verbal parallelism.
Trailers. Have nothing to do with them.
A trailer is not a movie.
Be wary of freebies.
Accept no favors.
No commercial endorsements.
Be prudent with free DVDs.
Be prepared to give a negative review.
Never review a film you have anything to do with.
Sit down, shut up, and pay attention.