Horton Hears A Gremlin

In the early 2000's, George and Neal were hired by FOX studios to pitch movie ideas. Given their many adventures, you'd think they would have a wealth of ideas for hit movies. As it turns out, they did not. Instead, George and Neal decided to follow the example made by the immensely financially successful "Aliens Versus Predators (AVP)" (e.g. lazily combining two movie properties together rather than coming up with actual cogent ideas). 

Neal and George started combining movie properties in hopes of creating blockbusters. It worked - they made a fortune producing such memorable hits as "Horton Hears A Gremlin," "That was Then, This is Apocalypse Now!", "The Wizard of Blade Runner", and "Aliens versus Peanuts". 

Thereafter, they tried to branch out into making other types of movies, but had little success. After creating "The Entirely Ending Story", they called it a day.