Acceptance and Commitment Therapy (ACT) is classified as a third generation behavioural therapy. It aims to achieve psychological flexibility by verbally understanding problems and consciously analysing private events. The general aim of the book is to describe the interaction between the components of the intervention model proposed by ACT based on an analysis of the content of a cultural artefact. The specific objectives are to identify the main concepts of Cognitive Behavioural Therapy (CBT); to describe the characteristics of third generation therapies, comparing them with first and second generation therapies; to describe the objectives of ACT; to describe the components of the ACT intervention model and to present the application of the ACT intervention model in a specific context. The design is qualitative and exploratory. The feature-length animated film Valente was used as a source.