Two guys learn different styles of karate and new languages after computer-chips are installed into their brains. I've been busy, so I only saw a few scenes from the film. In the beginning, these two were homeless on the street, harassed by thugs. Then they get chips on the neck (I did not see how, probably by mistake). and they knew more than 20 languages and fighting styles. so they fought against the enemy
The answer to this question is The Matrix.
Elaboration: (As asked by questioner) In the first part when Neo comes to the real world, he learns all the fighting techniques from a computer chip which installs the techniques in his mind.