Original: LaVey also appeared in Kenneth Anger's film Invocation of my Demon Brother, acted as technical adviser on The Devil's Rain, which starred Ernest Borgnine, William Shatner, and introduced John Travolta.
Simplified: LaVey was also in Kenneth Anger's film Invocation of my Demon Brother, and helped as a technical adviser in The Devil's Rain, which starred Ernest Borgnine, William Shatner, and introduced John Travolta.