How do I fix the green/brown haze when exporting an iMovie project from iPhone?

The film I shot on my iphone and then edited in imovie, when downloaded as a file comes up the way a negative photo would look like and what a developing photo would look like, hazed in a green/brown color.

Can anyone help me solve this affect? The movie itself looks fine on my computer.

[Re-Titled by Moderator]