Heather Mills is using a homemade video of the paparazzi as evidence in her divorce trial with Paul McCartney -- to show how she has been victimized since splitting with the former Beatle.

The video, posted on YouTube and Heather's own site, shows her being hounded by paparazzi, all the while the "Batman" theme is playing. At one point, Heather turns to the camera and says, "Someone could have been killed today."

We'll see if she has a legal leg to stand on.