Evolution is an Earth based science fiction which was released in 2001 and is directed by Ivan Reitman.
A meteorite crash lands just outside their city, the life forms inside evolve at an alarming rate. Dr. Ira Kane works solo to find a solution to the problem. The solution to their problem is an everyday hair shampoo due to its use of selenium which is poisonous to the aliens. There is no one particular alien in this film, instead there is a variety of different aliens. The film is based round the theory that man arrived here on the back on a comet or meteor which crash landed here thousands of years ago.