TSMkv is likely a file format or encoding specification, possibly indicating a high-quality, compressed MKV (Matroska) file. The 400MB file size is significantly smaller than the average file size of a full-length movie, which can range from 1.5GB to 5GB or more. This compressed file size suggests that the movie has been encoded using a highly efficient codec, allowing for a smaller file size without significant quality loss.
"Grown Ups 2" is a 2013 American comedy film directed by Dennis Dugan and written by Fred Wolf. The movie is a sequel to the 2010 film "Grown Ups," which followed a group of friends reuniting for a weekend after the death of one of their spouses.