Make a cinema box around a video clip I am new to video editing so if my terminology is wrong, I apologize. I am making a video with output settings : 720p and dimensions 640 x 480. I am inserting a series of video clips but their dimensions are smaller than 640 x 480. Instead of the video clip slide expanding up to 640 x 480, I want it to remain the same size but have a black cinema box or border box around the video clip. How can this be accomplished with a video editor?
Just import the video and don't scale it.  Any decent NLE should support using clips at their original resolution and placing them within a larger format either scaled or unscaled.  Without knowing your intended NLE, I can't really offer any more advice than that.  Premiere Pro would certainly meet your needs.