Can you play a movie made with windows movie maker on a computer without windows movie maker installed?

The answer is of course you can! Remember, Movie maker is a program to design movies. Once the movie is a finished product it could be played on any computer that has a media program. Most windows PCs have windows media player and Macs have quicktime. As long as you published the movie as a file it can work on any pc. If your going to play it on Mac or outside operating system keep in mind the universal format for movies is AVI, you can change that in movie maker when you finish the movie. If you stay with windows your fine and you can just finish the movie as is!

Hopes this help!