From "Men in Black" to the "Alien" franchise, alien movies rarely fail to capture an audience's attention. But while some big-screen beings are out of this world, others implode in theaters like a box office black hole.
From Jar Jar to E.T. to Zeebo and his furry friends, check out the 18 best and worst movie aliens of all time.—Xfinity Entertainment Staff (Photo: LucasFilm, Universal, Vestron Pictures)
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