Since iCloud came out, I have purchased a new MBP. Since there is no need to sync with a computer anymore since iCloud, my iPhone 5 has never been synced with my MBP. However, I created a home movie a couple of nights ago and exported it to iTunes. When I plugged my iPhone into the MBP to transfer the movie over, I had to check the "Manually manage music and vidoes" button on the summary tab of the iPhone sync screen. When I did this, it said it would have to erase the contents of my phone in order to sync since I had never synced with that computer. I don't want to erase everything on my phone. What's the best way to get a home movie from iTunes to my phone?