Clubhouse Pictures
Clubhouse Pictures was a division of Atlantic Entertainment Group, set up to release family films in the mid-1980s. Their output was in a word terrible - the claymation The Adventures of Mark Twain, episode compilation Heathcliff: The Movie, the famously dreadful The Adventures of the American Rabbit and import Peter-No-Tail in Americat were all commercial and critical flops before they collaborated with Hanna-Barbera to make GoBots: Battle of the Rock Lords in 1986. The movie was another box office bomb; after that, they gave up on films and, aside from working on the first season of the Teen Wolf cartoon, the division was shut down.
This is where things get...complicated. In 1989, Atlantic Entertainment sold their library to Island Pictures before they folded; soon after, Island defaulted to their bank, France's Crédit Lyonnais, and the rights to their work were integrated into a large library of content belonging to movie-making firms that were indebted to the bank, organized under the Epic Productions name into holding companies named after the Greek alphabet (Alpha Library Company, Epsilon Library Company, etc.). In 1996 (several years after Crédit Lyonnais had been bailed out by the French government due to their misadventures in Hollywood), the Epic library was purchased by the UK's Polygram Filmed Entertainment, who in turn were bought by Seagram's (yes, the liquor company) and integrated into Seagram's media company, Universal Studios. They then sold the pre-1996 Polygram library to MGM (also a victim of Crédit Lyonnais' missteps, having been taken over by Italian fraudster Giancarlo Parretti -- himself entangled with CLB's Netherlands branch for some time -- for eight months in 1990-91, before he was arrested and Credit Lyonnais assumed control) in 1998.
While MGM were able to release The Adventures of the American Rabbit on DVD, the situation with Battle of the Rock Lords is more complicated, as it uses trademarks currently owned by Hasbro and designs produced by Hanna-Barbera, who are now owned by Warner Brothers, one of MGM's main rivals. A home video release for the movie would likely need all three of these parties to co-operate, which might be more in lawyer hours than the film is worth.
