The actor stayed calm as windows shattered and people screamed in terror inside the supermarket, according to a US tabloid.
And Reeves reacted like it was a real-life version of one of his films as he hit the ground, yelling at panicked customers: 'Get down.'
After the gunshots died away, Reeves crept to the front of the store to peak outside.
After scanning the empty street, he said to the store owner: 'Call the police.'
But when cops arrived and swarmed the streets the culprits were nowhere to be seen.
The shoppers then found many of their cars had been shot.
Police believe the shooting was a random attack by a gang member proving himself.
no word on whether the sky was tinged green or blue.