Complex sentence: As is the case of many films of this type, Nirvana has achieved something of a cult status, being a worthy film lacking in the typical publicity and star-power afforded to major Hollywood releases and thus having slipped between the cracks of film history.
Split into simpler sentences: As is the case of many films of this type, Nirvana has achieved something of a cult status. Its fans view it as a worthy film that is lacking in the typical publicity and star-power afforded to major Hollywood releases, and has thus slipped between the cracks of film history.