I'm not sure what do you mean for a long exposure. Normally that is a single photo and the movement is captured as a blured trail.
Probably you are refering to a time lapse capture. Probably filming the full 5 mins and reproduce it in 1 minute.
Try using a screen capture software. The most popular i think is http://www.techsmith.com/camtasia.html you have to make some texts to configure the size of the output file, frame rate, etc.
You can configure it as a time lapse or a real time video.
If you need the blured result as the real long term exposition I agree with the option provided in user22723 to merge all the frames in a program like photoshp, starting with this same video.