That is a weird mix-up. Paul Dano is quality and his vibe is much darker, edgier and more erratic than Sam's, bless him. Jungle2Jungle is one of the best Disney live actions and I won't hear another bad word put. Funny you thought Dano was in rubbish like Rock City though. Or Grace & Frankie lol.
My favourite Dano film is Light And The Sufferer, his first major credit I believe. Barely anyone's seen it or heard of it, and technically it is gritty indie New York look-what-we-can-do-with-early-CGI wank, but it's also very creative, raw and heartbreaking. Lovely, eerie soundtrack as well. Based on a short story that wasn't as good. I lost the DVD copy I had years ago, and have been kicking myself ever since cos it's hard to find now.
I watch that trailer and I see the kid from Detroit Rock City. Something in my brain is refusing to allow me to differentiate between these two. Even though they don't look or act alike and choose wildly different projects. Sam Huntington and Paul Dano are the same person. I'm standing by it.