Oscar winner Chris Cooper and his wife, Marianne Leone Cooper, were at the Independent Film Festival Boston for a screening of “Intelligent Lives,’’ director Dan Habib’s film focused on three young adults with intellectual disabilities who challenge perceptions of intelligence as they navigate high school, college, and the workforce. (Cooper narrates the film.) . . . Other VIPs at the IFFBoston included celebrated screenwriter/director Paul Schrader, who attended the screening of his new movie, “First Reformed,’’ and Rafael Casal and “Hamilton’’ actor Daveed Diggs, whose new film, “Blindspotting,’’ screened at the festival.