HD Films on iphone 5
Is it possible to put HD movies from iTunes on an iPhone 5?
iPhone 5, iOS 6.0.1
Yes, they just have to be in a compatible format.
You can download them from the iTunes Store or sync videos that you converted or created yourself, as long as they meet the system requirements.
Apple - iPhone 5 - View all the technical specifications
Video formats supported: H.264 video up to 1080p, 30 frames per second, High Profile level 4.1 with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; MPEG-4 video up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second, Simple Profile with AAC-LC audio up to 160 Kbps per channel, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; Motion JPEG (M-JPEG) up to 35 Mbps, 1280 by 720 pixels, 30 frames per second, audio in ulaw, PCM stereo audio in .avi file format