Bobcat Goldthwait has been known for 40 years for his highly unconventional approach to comedy, and more recently for writing and directing in film and television. Saturday night, the Tallgrass Film Festival will give Goldthwait their annual Ad Astra award, given to luminaries who have dedicated their careers to the cinematic arts. KMUW's Fletcher Powell reached Goldthwait at his home in Los Angeles ahead of his appearance at the festival to talk about his work and the motivation behind it.