Discovery awareness (DA) is an approach to using video within structured meetings to help staff become more mindful, aware and interested in a client they are supporting who has intellectual disabilities and challenging behaviour. The objective was to evaluate whether, and how, DA is helpful for staff in both inpatient and community settings, and whether it increases self-efficacy in working with people with challenging behaviour. A two-phase mixed method design was employed. For phase 1, forty staff who took part in one of seven single DA meetings completed the Challenging Behaviour Self-Efficacy Scale pre- and post-DA. In addition, post-DA, participants completed an Adapted Helpful Aspects of Therapy Scale (AHAT). For phase 2, six participants completed a follow-up Change Interview; 3-12 weeks after DA. Descriptive statistics reveal participants found events in the DA 'greatly helpful'. The changes identified varied in whether they were expected or not, but were unlikely to occur without DA and 'very important'. Statistical analysis showed no significant changes in self-efficacy following the DA. A thematic analysis on the qualitative data generated by the change interviews and AHAT identified three main themes: Impact on interaction; DA is unique and valuable; and the power of the process. The latter had three subthemes: a structure to facilitate change, making use of the content and reflective space to promote learning. Attendance at a single DA meeting does not increase staff perceptions of self-efficacy, however, staff find the process of DA helpful as it encourages reflection on their interactions with individuals with intellectual disability and challenging behaviour and attuning of their interactions, though further research is needed.