Ask for a movie name about aliens

For example, 1988 American film Alien Empire.

James caan Elborne, Brian Thompson.

Plot:

This film is a variation of a science fiction film and a gangster film. The idea is ingenious and the story content is quite innovative. It's a pity that director Graham Baker's handling method is relatively general, and he failed to control the dramatic contradiction and exciting action atmosphere of the two leading actors, which made him fall short. The story is set in the future world of Los Angeles. At this time, 300,000 migrant workers have entered the United States and become one with the people of the earth. Sykes, the partner of Interpol, was killed by sand. In order to find out the real murderer, he had to accept the alien policeman Francis as his new partner. In the process of tracing the truth, two different kinds of criminal police gradually eliminated mutual distrust, overcame the obstacles encountered by different races in case investigation, and jointly dealt with the main suspect-malicious earth entrepreneur Terrence.