: By dividing the movie into pieces, your computer can download different parts of the file simultaneously from multiple people ("peers") in the network.
: For a 1080p movie file, which typically ranges from 2 GB to 8 GB, the piece size is usually a power of two, such as 2 MB, 4 MB, or 8 MB . Smaller pieces like 256 KB are common for smaller files, but larger ones are preferred for high-definition video to keep the metadata file size manageable. File Context: 2 Fast 2 Furious (2003)
How Big are Video and Movie File Sizes? | Fortra - GoAnywhere
The filename suggests a encode of the 2003 film 2 Fast 2 Furious .