Marvel has modelled the 10-disc collection's packaging on a briefcase used by Samuel L Jackson's Nick Fury in Avengers, a design which Rimowa GmbH hold the rights to.
The firm claims that the studio does not have the rights to reproduce the original design it created for the movie, and is taking court action, The Hollywood Reporter understands.
Avengers recently passed the $1.5 billion (£945 million) mark worldwide in its 19th week on global release, making it the third highest-grossing movie of all time.
Marvel recently released an alternative opening sequence to the film that will feature among the DVD and Blu-ray extras.
The Avengers is released on DVD and Blu-ray in the UK on September 17.
> 'The Avengers': 5 potential storylines for a sequel
Watch a clip from The Avengers below:
Photo gallery - The Avengers, from comic to screen: