Leonardo DiCaprio's highly anticipated film, One Battle After Another will see him portray an interesting and different character. He shares the challenges and the journey of making this film along with its stellar star cast. Excerpts.. On the overarching themes of the film... This is not a typical hero's story. My character, Bob, had within him that ability to protect what he loves and to fight for what he loves, but he's lost that. And this whole film is about him trying to rediscover that.