Insert a separate clip into a video ?

[milo1]

Hi,

I wonna create a simple video of a marble run but I also wonna include seprate clips of scenes within in. So for example if I am following the marble along the rails I want to add a scene when the marble makes a turn. But I want this smaller clip to appear in that video in the top right corner?

I am not sure how this process is called and what software should be used to achieve this.

Any help would be great,

Thanks!

[Midnight Blue]

Do you mean picture in picture. If so there are lots of tutorials on YouTube.