Below I've edited and rewritten your first two paragraphs -- using your own ideas. Also, you'll find suggestions for an additional paragraph, as well as a stronger closing paragraph. The rewrite and suggestions follow here:
Street Kings, a recently released action film (2008), tells the story of a cop (played by Keanu Reeves) with an independent streak that only invites trouble. Reeve’s screen presence appears well-suited for the character of the cop that he plays: a sometimes out of control officer of the law – his own – whose tendency toward washing away the stress of his job with more than a few drinks only serves to add imbalance to his already volatile temper.Good luck! Your original final paragraph follows:
Reeves’ character’s excessive stress and drinking cycle is triggered when his partner decides to report corrupt police activities to their commanding officer. And what becomes the reward for Reeves’ partner’s whistle-blowing? -Suspicious circumstances indeed. He’s found murdered and Reeves’ character is set up as the prime suspect. In his attempts to clear himself for the murder of his partner, Reeves' character finds only deepening levels of corruption. The deeper he digs, the more he discovers the involvement of those whom he had once considered loyal friends.
(Why not a few words here about the build-up of suspense and tension that leads to the film’s climax? For example: Is there a chase sequence worth describing here? Most action films can’t do without them. Whatever the climax may be, a few words describing it in a paragraph here -- without providing “a spoiler” i.e., giving too much away -- would increase and hold your readers’ attention.)
(I‘ll leave it to you to rewrite your final paragraph. Besides providing a final recommendation -- or not – you should look to assess how well the film measures up against an audience’s expectations for a suspense/action film. Again, provide supporting details without giving too much away that will “spoil it” for your readers.)
To me the film was a good film of its genre it creates an atmosphere and keeps the story rolling. On the other hand the film is quite usual, nothing extraordinary. So I'd recommend that film for everyone who wants to see a classic action film
Student or Learner