gets mugged and shoes stolen, he falls all the way back to his own planet?
Yep, the few times I thought about it, my palms got sweaty..
From the first couple of seconds of the trailer it looked like a romeo and juliette story. IS this true?
There's elements of it, but things thankfully weren't entirely spoiled by the trailer. There's a pretty significant deviation early on.
It's basically a story about the most reckless dude in the universe who isn't afraid of heights and doesn't mind being upside down.