How do I make grayscale movie with highlight colors?

vo1umeone: How do I make grayscale movie with highlight colors?
I am making a movie for a class project. I’ve never really used movie making software before.
I know you can make movies in grayscale, but I also want to leave all the reds colored. So the movie will be all in grayscale with red highlighted objects like, say, a rose or apple. How can I do this? Does Windows Movie Maker have this feature? If not, what software could I use? Thanks everyone.

Answers and Views:

Answer by SME
If you can use a Mac you can find on I Movie in edits what you are looking for.