If you were wondering in 2015 how the cops could have video of you shooting a political leader (look how smoothly I'm avoiding a Sec. Service visit) when really you were trying to save his life, now you know.
Merkwuerdigeliebe But think of all the fun you could have superimposing yourself over Gregory Peck or Audrey Hepburn. Win some, lose some.
Smellvin Why would I want to protect Hillary when she's running for reelection?
mouser Some of these effects can be achieved in Apple's pro suite of video tools. It's mind boggling what you can do to video these days.
Digging further, this is a Washington University CS project. I'm sure they're up for grab.