Complex sentence: Anthony Perkins wanted to direct the film and even came up with a pitch for the film along with Psycho III screenwriter Charles Edward Pogue however Psycho III was a critical and financial failure so Universal rejected this idea and Mick Garris was brought in.
Split into simpler sentences: Anthony Perkins wanted to direct the film, and he even came up with a pitch for the film along with "Psycho III's" screenwriter, Charles Edward Pogue. But "Psycho III" was a critical and financial failure, so Universal rejected this idea and Mick Garris was brought in.