I have seen analyses of this website and it seems to be safe, but I want to make sure. I'm not doing this because I don't want to buy Minecraft. I already have Minecraft, and so does my sibling. But I have a project in English where I have to make a trailer, and I chose to make the trailer in Minecraft. The thing is, I have to film it with one player, while there are two other players acting. I don't want to make it first person because, well, it won't look that good as a trailer. I asked a friend if they could tell me their account information, but just in case they don't agree, I would resort to this. Because I'm not about to spend $27 for something that I'll only temporarily need. So please, If you know this site is safe, tell me.
tl;dr I need to access multiplayer Minecraft because I need to film a trailer with another account.
Added (1). I'll be fine if anyone is willing to give me the information for an account they don't want/need, but I doubt that is the case for most people.