Plan 9 from Outer Space

Planfrom Outer Space originally titled Grave Robbers from Outer Space is a 1959 American blackandwhite science fiction horror film released by Distributors Corporation of America as Valiant Pictures. The film was written, produced, directed and edited by Ed Wood, and stars Gregory Walcott, Mona McKinnon, Tor Johnson, Vampira and posthumously bills Bela Lugosi as a star silent footage of the actor had actually been shot by Wood for another, unfinished film just prior to Lugosis death in 1956.

At his home, lost in his thoughts of grief, the Old Man goes outside and offscreen steps in front of an oncoming car and is killed. Mourners at the Old Mans funeral later discover the dead gravediggers. Inspector Daniel Clay Tor Johnson and his police officers arrive, but Clay goes off alone to conduct his own investigation.Jeff Trent and his wife Paula Mona McKinnon, who live near the graveyard, hear the sirens, and Jeff tells Paula about his saucer encounter, stating that the Army has since sworn him to secrecy. A powerful wind then knocks everyone to the ground at both the Trent residence and the nearby graveyard, as a saucer lands. Inspector Clay then encounters the female zombie and the reanimated corpse of the Old Man, and he is killed by them. ........

Source: Wikipedia