"It's good." "says who?": the mediating role of professional legitimacy on the relationship between film-extension performance and changes in directors' human brand identity

Purpose Building strong human brands inscribed in social and symbolic recognition is a strategic issue for branded individuals. In the context of film director human brands, this study aims to examine the respective influences of the economic and critical performance of films, on the one hand, and the professional legitimacy bestowed by internal stakeholders, on the other, on changes in human brand identity. Contrary to what is generally believed, it shows that the specific legitimacy bestowed by producers and the institutional legitimacy bestowed by elite peers mediate the effects of performance on changes in human brand identity. Brand extension (i.e. new films) incongruence and initial human brand identity moderate the effect of performance on legitimacy. Design/methodology/approach This study is applied to film director human brands and to their extensions through the films they make. Data were collected for 81 films, including information before and after the brand extension occurs, to capture changes in human brand identity and extension effects. Findings The results show that economic performance influences both specific and institutional legitimacy, whereas critical performance only impacts institutional legitimacy. These relationships are moderated by initial human brand identity and congruence. Both types of professional legitimacies also help reinforce human brand identity. Originality/value The study challenges the role of performance on the building of human brand identity and shows that the latter is co-constructed by the branded individual and internal stakeholders. It also enhances the key roles of global incongruence and genre incongruence in the model.