Hulk versus Thor

From a fan boy perspective 'Hulk vs'  is one of the better received animated movies. It opens up a playground in which these characters could have a school yard fight without ending on a 'moral of the story' scenario that plagued many well known animated series from the 80's like He-man or G.I. Joe. It scored an audience rating of 67% fresh on rotten tomatoes and banked just under 8 million dollars domestically on video sales.
The idea was taken from the 1963, first ever issue of the Avengers, where Loki manipulates the Hulk to defeat Thor; that plan backfires and inadvertently forms the alliance of earth's mightiest super heroes. The difference being this battle is not on earth, but Asgard, the home to Thor and the gods.

It was the first medium besides comic book pages to reveal  more of the landscape that is Asgard by way of architecture, landscapes,and how Kirby's creation interconnected with one another. The movie is bookend with a colorful montage of Asgard  with easter eggs of various characters like Frost Giants, Dark Elf Malakai, and the Destroyer just to name a few.
The color scheme also serves as a motif, beside giving the gods a sense of light that surrounds them,  animators intentionally made the color green to represent an enemy of Thor. Characters consisting of Loki, Enchantress, Hela, and Hulk are at some point opponents to Thor.  Actor Graham McTavish who provides the voice for Loki, also portrays a menacing character on the now concluded television series Preacher. A live action comic book adaption that aired on AMC,  playing The Saint of Killers.

As far as being shown on a celluloid medium this is the fourth time these two characters fought in battle. The first was the Incredible Hulk Returns (1988), followed by Mortal Bounds (1996), and then Ultimate Avengers (2006). Of course battles five & six occurs in the MCU with Avengers (2012) and Thor Ragnarok (2017). . .  all videogame match-ups excluded.
This movie was released on January (2009) and has a run time of 83 minutes and shares a second story of Hulk vs Wolverine; both have a rating of PG-13 for animated action violence. By definition the film, if not combined with a second story would be considered a short as both run at about the 40 minute range.