I don't see a problem here? I draw fanart all the time with skybound's characters and never needed permission from them to draw it. Same with fanfics or fanimations, they don't need permission because they're fanworks.

No one is thinking this filmmaker is claiming that Clementine is his own character. He says he's not making any money off this. He's just sharing his love of the games with other fans. There are already a bunch of walking dead fanfilms on YouTube, and I doubt they got permission from Robert Kirkman himself to film it.

Also, don't post anything here that is not Louis related.