The 2000s saw the fabled animation studio release instant classics like Finding Nemo and The Incredibles, and increasingly mature fare like WALL-Eand Ratatouille. Pixar was on arguably the hottest streak in the history of movies leading into 2009.

VOTE FOR THIS MOMENT IN OUR 21 MOST MEMORABLE MOVIE MOMENTS POLL In this episode of our ‘21 Most Memorable Moments’ series, Up director Pete Docter tells us how the “Carl and Ellie” sequence evolved from a jokey, slapstick tale into something that broke both hearts and ground. In this special video series, we speak to the actors and filmmakers who made those moments happen, revealing behind-the-scenes details of how they came to be and diving deep into why they’ve stuck with us for so long. Once we’ve announced all 21, it will be up to you, the fans, to vote for which is the most memorable moment of all. In 2019, Rotten Tomatoes turns 21, and to mark the occasion we’re celebrating the 21 Most Memorable Moments from the movies over the last 21 years.

W atch: Director Pete Docter on the making of Up above.

Up pixar intro scenes