But wait, I need to be careful here. Accessing movies through unauthorized sources is illegal. The user might not be aware of the legal implications. Also, the mention of "mkv" suggests file types that could be pirated. My response should guide them in the right direction, perhaps towards legal streaming services. I should avoid providing any tutorials on piracy. Let me make sure there's no mention of illegal activities. I should inform them about the legality, recommend legal alternatives, and maybe offer help with other related issues if they're not about piracy.