Let me start with, why does Sean Penn always chose a role where it looks like he has mental issue? "I am Sam" and now "This Must Be The Place". Maybe I shouldn't say this because I probably didn't watch his other movies. It's just the movie I watch from him, he acts off as suffering mental problems or depression, disorder, disease, etc. I like the ending song though, "This Must Be The Place" by Gloria. I'm not sure why they called it "This Must Be The Place" but the movie did mention that the little kid was saying Arcade Fire sang the song "This Must Be The Place" and Sean Penn was like, that the Arcade Fire covered the original song. I'm guessing it has to do with where he's in search for his dad's goal to kill the Nazi soldiers. His father passed away and left a diary about this man he was searching for. It was cute I guess, random too. I never seen him in a goth style before. He acted strangely, but not poorly. It was indeed, a better portray of a rock star. Kind of like Ozzy Osbourne, where he is right now, he looks bit goth or metal style. I am not good at generalizing fashion, so ignore me with this one.
Mana Sama from Moi Dix Mois, his hair style had similar style like Mana Sama from Malice Mizer and Moi Dix Mois. That was the first thing that popped into my head. His role sounds depressing in the beginning, but it gets better. He was playing the role of a guy name Cheyenne. This movie doesn't explain what happened to his friend who passed away, but I think I could have missed it. Maybe about depression lead to commit suicide. His musics were all depressing, I think after his friend's death, he stopped performing.