The entire Day of The Dead by George Romero.

1 year after the outbreak of the mysterious Space born Zombie Virus humanity is almost gone, being outnumbered 400,000-1. A group of Soldiers and Scientists are held up in a bunker in the Florida Everglades, searching for Survivors, and trying to make a cure as supplies slowly dwindle done. What could possibly happen?

1st message is the start of the movie when Sarah and Miguel are looking for survivors

2nd message is when the zombies are met in the bunker by Miguel