To test flexor digitorum superficialis, one finger is flexed at the proximal interphalangeal joint against resistance, while the remaining three fingers are held fully extended (to inactivate flexor digitorum profundus).
Because we are too, obviously. Today Pixar Animation Studios announced updated release dates for each movie, so here they are so you can mark your calendars accordingly: The Incredibles 2 will come out June 15, 2018 and Toy Story 4 will come out June 21, 2019. Toy Story 4.
Thanks to the enormous marketing power of Disney/Pixar's production partner, the film was so successful that it swarmed a sequel, Toy Story 2 which was released in theatres November 24, 1999. Eleven years later, Toy Story received a second sequel, Toy Story 3 which was also released in theatres June 18, 2010.