Shine
Two male, glowing creatures start a fight over trying to impress a female. Each one of them wants to win her over by giving a better light show than his competitor. They are on fire - until one gets burned.
Starring
Watch "Shine" on Amazon released in 2016. It's a fantasy and animation movie, and has a rating of 6.1 out of 10 from Imdb which is usually fine for this kind of movie, and is currently only available for purchase or rent.