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.
A sequel, Cars 2, was released in 2011 with Disneytoon Studios taking over the property for a spinoff feature, Planes, that was released to the big screen last year. A sequel to that film, Planes: Fire & Rescue is set for release on July 18, also from Disneytoon.