This first clip represents the kind of expert witnesses Amber Heard has called. It's about an hour long, but if you watch the first 5 to 10 minutes you get the gist. Imagine Dr Emmett Brown (Christopher Lloyd) from Back to the Future giving expert testimony on psychiatry.

https://www.youtube.com/watch?v=OJpjYSFvelY&feature=youtu.be

This clip is an example of what Amber Heard looked like on the witness stand. Watch a bit and it will give you a clear indication of how well the jury likes her or believes her.

https://www.youtube.com/watch?v=g6Ho6JLLUTI&feature=youtu.be