Evolution

The spirit of the mega-hit Ghostbusters (1984) is intentionally recalled with this effects-heavy sci-fi comedy from the same director, Ivan Reitman, co-starring Dan Aykroyd and debuting on the 17th anniversary of the earlier film's release. When a meteor bearing single-celled organisms crashes to the Earth, the life forms are initially confined to a cave. Before long the creatures are evolving at an exponentially rapid rate, resulting in fearsome aliens running amok and possibly spelling ma...