Films in which Bruns appeared include A Thousand Clowns (1965), Jenny (1970), The Out-of-Towners (1970), The Gang That Couldn't Shoot Straight (1971), Silent Night, Bloody Night (1972), Harry and Tonto (1974), The Great Waldo Pepper (1975), Nickelodeon (1976), Corvette Summer (1978), The Stunt Man (1980), My Favorite Year (1982), Flashdance (1983), Amazon Women on the Moon (1987), Return of the Living Dead Part II (1988), Dead Men Don't Die (1991), The Opposite Sex and How to Live with Them (1993), Love Bites (1993), Pentathlon (1994), The Trigger Effect, and Ed (1996). He wrote The Character Actor's Do's, Don't and Anecdotes', which was published in early November 2008.