Let's get one thing out of the way, in order to watch this, you need to have a good creative imagination to truly appreciate it for what it's worth. It's not trying to directly adapt the Dragonball/DBZ anime, but rather the content. Purists will probably be left frustrated, but that isn't a criticism I can put on this movie. It's more than just candy for the purists. At the end of the day, this is as what's described in the credits, a fan fiction. That said, this is a truly great fan fiction.
I am a huge fan of the original anime and manga. I consider myself very knowledgeable about the universe, its lore, and its characters. History of Trunks might be one of my favorite parts of the original anime, and I feel that this pays good homage and takes the original story in a riveting new direction.
The action is solid, and the exposition is great, with dialogue being handled by the narrator instead of the actual characters (a great choice, as English isn't the casts' primary language). I feel that this adds a nice twist, as the actors do a great job by just showing emotion and body language. Great job by the actors.
For a low budget film, this short is gorgeous. These people definitely have a future in feature film making and the cinematography is admirable. The fight feels truly like its telling its own story, one of the highest compliments I can give.
In summary, this is a great twist on the source material, with new dimensions added that feel like they belong. The acting is good, the voice acting is decent, and the action is just right. The music is fantastic as well. If you are a purist who wants a direct adaptation of the anime to the screen, with Trunks having purple hair and Bulma having blue, then this isn't the film for you. If you've got an open mind and would like to be taken to a place where it feels right, and the source material is still treated with respect, then don't pass this up.