You may have heard already that Pixar plans to release several sequels in the next few years, including Cars 3, Toy Story 4 and Incredibles 2. But what about last summer’s hit Inside Out, or even better 2007’s Ratatouille and 2008's Wall-E? The opportunity to cash in on these favorites seems ideal for Pixar sequels, but, unfortunately, it may be another decade before you see anything more from them.

Pixar president Jim Morris recently spoke with Entertainment Weekly regarding how and why sequels are chosen. Pixar’s business model is a filmmaker model. This means that in order for a sequel to get made the director of the original film needs to have an idea and be available to get started.

It can take anywhere between three to five years to complete a film. So, if director Pete Docter of Inside Out has an original idea for his next film (which he apparently does), then we won’t be seeing a sequel from Inside Out for six years, if not more.

Morris went on to explain the difficulty in producing a successful sequel:

“A sequel in some regards is even harder [than the original] because you’ve got this defined world which, on the one hand, is a leg up, and on the other hand has expectations that you can’t disappoint on.”

With this in mind, it’s good to know that when a sequel is made from a Pixar original they try to keep the integrity of the creative process intact, rather than just making a film to appease popular demand. Part of what has made Pixar films and their sequels so successful is that they wait for the right idea to come along and develop it. Just because your favorite animated movie doesn’t have a sequel lined up on Pixar’s five-year-plan, doesn’t mean it won’t be there on the ten!