Free Videos First Time What Is Good But Affordable Or Free Video Editing Software For Side By Side Videos?

What is good but affordable or free video editing software for side by side videos? - free videos first time

What software is good, but affordable or free for the next video editing to the videos? As if I throw something else with two cameras from different angles and I want them together, side by side in the same folder as the famous John Williams music video tribute. I have Windows Vista. It comes with Windows Movie Maker, but I could not figure out how to do.