Is it really about aliens?

M. Night Shyamalan's "Signs" (2002) is about a disillusioned ex-minister (Mel Gibson) who lives in the country with his son & daughter and brother (Juaquin Phoenix). The reasons for his disillusionment become clear as the story unfolds. When a mysterious crop circle is discovered in their cornfield they wonder if it's a prank or an alien invasion!

Although the plot deals with a possible alien invasion, the theme is faith. There are two general views of life: (1) That life and the universe are one big meaningless accident and you're just an insignificant bu... read the rest.