These two terms refer to the same groundbreaking video compression technology. stands for High Efficiency Video Coding (also known as H.265), and x265 is the open-source encoder program used to create it. HEVC is the successor to the older H.264 standard.
Paddington himself is a triumph of digital effects, created by the VFX studio Framestore. The animators managed to inject deep soul, politeness, and subtle comedic timing into a CGI animal. In full 1080p high definition, you can appreciate the physics of his wet fur, the micro-expressions in his eyes during a "hard stare," and the messy realism of marmalade smeared across his nose. The Final Verdict Paddington.2014.1080p.10bit.BluRay.6CH.x265.HEV...