ITunes movie downloading taking So long?

Earlier this morning I downloaded a 2 hour length movie (on both iPhone and PC) in SD and it's about 1.7 GB. I searched up online how long it took for others and they replied about an hour at most, but for me, it's been downloading for at least a good 12 hours and it's currently at 500 MB out of 1.7 GB. (1/3 there). Is it normal (for some at least) to have it download for this long? I don't mind waiting. And will it play the same as any other downloaded iTunes movie, or will it have complications, ect?

Movies

  • Will downloading a new iTunes ruin my old iTunes library? I tried connecting my new iPhone 5 to my iTunes but it said that it wouldn't connect because my version of iTunes was really old (from 2010) and I never updated. It said I need to download a new version of iTunes (10.7 onwards) for it to be compatible with my iPhone. But my question is, IF I download a new version of iTunes, will all my old songs on my old iTunes disappear? Because if I had to re-download my whole library, I would seriously cry. That would take the rest of my life.
  • Will downloading a movie on my Iphone slow it down? I want to download a Jurassic Park onto my iPhone 6 but I'm not sure whether to because I don't want the phone to slow down
  • Why tf is it taking so long to get my iPhone 5? I ordered my I phone the on September 21st… They said 2 - 3 weeks… It's almost been a whole month? Why.
  • Why is my package taking so long? I bought a iPhone case like 2 ekes ago and the shipping was 2-3 days and they still haven't gotten here. Plus I'm in Houston and they went to Houston then got shipped to Dallas?