This informational video was filmed in paediatric, surgery, cardiology, onco-hematology, and radiology departments in order to present a variety of situations in which children can receive information by means of interactive play. A number of support materials are shown, including Playmobil characters, dolls, puppets, a CD-rom... Specific information is provided on the neccessary stages for developping a long-lasting project : planning, training, and organisation. Children, parents, and health professionals speak about the effectiveness of this approach. By discussing both the positive aspects as well as the obstacles that must be confronted, this film invites its viewers to take action...