As my one line summary says, this is one of the best sci-fi comedies ever made, next to the classic Ghostbusters and the highly underrated Evolution. This movie has action, comedy, and some of the best special effects in the last ten years. Rick Baker, Hollywood's resident 'creature man', as I like to call him, has made such a wide variety of aliens. There's the first alien we see, Mikey; there's the Worm Guys; and the villanous Bug. But there are many others, such as Frank the Pug and the twins. The squid baby is pretty neat. Tommy Lee Jones and Will Smith have an undeniable chemistry together, which repeats itself in the sequel. Linda Fiorentino is also good as the leading lady, and veteran actor Rip Torn is gruff as the head of MIB, Zed. Vincent D'Onofrio is also pretty good. My favorite line: "No, ma'am. We at the FBI do not have a sense of humor that we are aware of." All in all, two thumbs up, baby!