"Boot cop buddy movie with some stupid animal sidekick"
This is trying to define a very specific genre of movies. Commonly-referenced movie genres tend to be quite broad - for example Romance, Comedy, Horror, or Action. There are also many sub-genres which require further definition, like Romantic-Comedy which contain elements from two different genres. Yet, there are also many movie tropes or cliches which have been so frequently used they can be described, as in your example, and be familiar to many.
- A "boot cop" is a rookie, or inexperienced police officer.
- A "buddy movie" is a film where the dynamic between two friends is a key element of the film. These are commonly also cops.
- An "animal sidekick" is an animal partnered with a human. In police stories, these are usually police dogs.
There are a number of movies where the traditional "cop buddy movie" has been subverted by replacing one human with a dog, and therefore the dynamic is between the animal and the human. Examples that spring to mind are Turner and Hooch, K9, and Top Dog.