have {ok, but better without the "have"} recently watched an action film. It was the best film I have ever seen. It was called “ fair game”.{capitalize titles} The story was very interesting, and all the time I was thinking[,] “ What will happen next?”
The story was telling [told] about the fight of a lawyer [and] a brave cop against terrorists. The lawyer knew everything about the terrorists, so they tried to kill her. The cope[cop] wanted to protect her from the chasing of these bad guys [who were chasing her] {"pursuing" is better here I think} . There were many exciting car races[chases] and thrilling scenes of shooting during the film. The lawyer and the cope[cop] had to escape from the terrorists. They {who is "they"? the terrorists] were believed to die [have died in] after a car accident. Fortunately, they were rescued. In[At] the end of the film all the terrorists died in the fire. {your whole description of the plot sounds a little disjointed and unorganized}
I really recommend you to see this film. The acting was so good that you [will] forget {or "that I forgot it …"} it isn’t the real world. You will be amazed by the wonderful acting of the stars, I am sure.