Plot hole: Spoiler Alert: When Finney gets the rope that was hidden in the wall, he needs to thread it through the window bars about 8 feet above his head. After trying to lasso the rope through the bars, he grabs a rolled-up carpet and threads the rope from the bottom of the carpet through the bars and it wraps itself around the bars. There is no way a rope (or even a bendable cable) would be able to thread itself 8 feet through a carpet. After he grabs it, you can tell it's a loose rope, not a stiff wire. (00:51:15)
Suggested correction: It's a cable (which is also what The Paperboy calls it) not a rope. The window bars are maybe 8 feet from the ground, not 8 feet above Finney's head. It's quite possible that a thick cable could be pushed up through the rolled up carpet. It's also possible that there's a little mystical help taking place, maybe from the dead kid that was talking to Finney via an apparently broken phone.