Video Business has reported that Lionsgate will be releasing two movies, Ultimate Avengers: The Movie and Ultimate Avengers 2, on a single 50GB Blu-ray Disc. These two films are also the first direct to DVD titles to be released on Blu-ray.
Lionsgate and Marvel Enterprises plan to use Blu-ray Disc to its full capacity with the first double feature release on the format.

The companies will debut Ultimate Avengers: The Movie and Ultimate Avengers 2 on one 50GB Blu-ray disc April 24 for a suggested retail price of $39.99. Prebook is March 28.

The films will be the first direct-to-DVD releases to debut on Blu-ray.
To fill up the rest of the disc, the release will also include two featurettes, a gag reel, a trivia track and a first look at the movie Dr. Strange. If you'd like to read more, the entire article can be found here.