This requires the use of a Gameshark.
Enter the walk-through doors code with your Gameshark. Set up your camspy JUST outside of the spot that triggers the villian's important meeting. Now, with the Gameshark code on, walk through the door and just stand at a random spot near the table. Now go back to the camspy and activate the cinema... The villains will have their important meeting while Joanna stands right there! (NOTE: It might be possible to get a guard to open the door through the use of the cloaking device, not sure though)
Submitted by: AndyDark