With the summer movie season heating up, four popular Disney•Pixar movies are returning exclusively to AMC Theatres for the Memorial Day holiday weekend. From May 25 through May 28, Toy Story 3, Ratatouille, Up and WALL•E will be featured at AMC locations around the country. Theater goers will get a special treat for coming out to the cinema. Each film will be accompanied by a classic Pixar short film and an exclusive behind-the-scenes look at the upcoming movie, Brave. Sounds good to me! “There are some great films coming out Memorial Day weekend but nothing specifically for families and young children,” said Sun Dee Larson, vice president of Film Marketing at AMC. “We’re…