Say that someone assigns me the task to create a fake utility bill?
Yes, no, maybe. Production of facsimile documents for entertainment purposes is not a crime in America (your location might be different). Lets say the papers will only be used for a movie you are cool. Creating documents to defraud (or cheat someone) can be multiple crimes (fraud, conspiracy, theft, forgery, terrorism) in America. Lets say you know the papers will be used to claim residency, get credit, or other fraud you are a criminal. Not asking what the documents will be used for will not save you at trial. This is can be called willful disregard, wanton conduct, or Gross Negligence. BTW - If you take the money and dont do the work, thats a civil matter and possibly a crime also.