I'm still trying to figure out if it was intentional or not for JGL to not resemble Young Bruce Willis
Or maybe they wanted him to look like young Joe(Most likely)
When I saw the trailers, I thought that Joseph Gordon-Levitt looked kind of weird, then I read that he went through hours of make-up every day to look like a younger Bruce Willis. In the end, he still didn't look like Bruce Willis.
Saw the movie today. Sure, the logistics of time travel didn't add up but I quite enjoyed the movie none the less. I got more than I was expecting. I saw another of Rian Johnson's movies a few weeks ago, called Brick
(also starring Levitt) and I could see some of that movie's style in Looper