Destination Mars!(2002)

Martian women from Mars have sent an army of killer robots to take over planet Earth, and the only hope for mankind may be a Doomsday weapon built by a mysterious inventor in this throwback sci-fi entry with a double shot of 1950s retro kitch. As killer robots descend from the sky, a hapless police officer is abducted by a UFO and a young couple finds their romantic picnic rudely interrupted by the shiny metallic invaders. Though a doomsday weapon of unimaginable power may be mankind's only defense against the powerful invaders, it could also spell the end for the human race as we know it.