Pirates Vids Are Special Video Effects Free And Downloadable????

Are special video effects free and downloadable???? - pirates vids

Listen, I'm a huge fan of video artist, and I wanted to put some special effects on my vids, and I saw the other day. It was as "Pirates of the Caribbean with lightsabers. LOL! Is there a place where you get effects that can be downloaded free of charge and economic vid in Windows Movie Maker, or can also be very cheap, and if so, where?