Steven Spielberg has spent nearly 50 years asking whether humanity is alone.

Armed with a spectacular cast for "Disclosure Day" (★★★½ out of four; rated PG-13; in theaters June 12 ), Spielberg takes an imaginative look at what it would look like if humanity actually found out ...

His latest film, Disclosure Day, also focuses on aliens - specifically on a whistleblower who races against the clock to unveil a conspiracy by the government to keep knowledge of extra-terrestrials u...