
The following is a list of unproduced J. J. Abrams projects in roughly chronological order. During a career that has spanned over 30 years, J. J. Abrams has worked on projects which never progressed beyond the pre-production stage under his direction.

The following is a list of unproduced Darren Aronofsky projects in roughly chronological order. During his long career, American film director Darren Aronofsky has worked on a number of projects which never progressed beyond the pre-production stage under his direction. Some of these projects fell in "development hell" or were cancelled.

The following is a list of unproduced Michael Bay projects in roughly chronological order. During his career, American film director and producer Michael Bay has worked on a number of projects which never progressed beyond the pre-production stage under his direction. Some of these projects fell in "development hell" or are officially canceled.

The following is a list of unproduced Tim Burton projects, in roughly chronological order. During a career that has spanned over 30 years, Tim Burton has worked on a number of projects which never progressed beyond the pre-production stage under his direction.

The following is a list of unproduced James Cameron projects in roughly chronological order. During his long career, Canadian film director James Cameron has worked on a number of projects which never progressed beyond the pre-production stage under his direction. Some of these projects fell into development hell or are officially cancelled.

The following is a list of unproduced John Carpenter projects in roughly chronological order. During a career that has spanned over 40 years, John Carpenter has worked on projects which never progressed beyond the pre-production stage under his direction. Some of the films were produced after he left production.

The following is a list of unproduced Michael Cimino projects in roughly chronological order. During his long career, American film director Michael Cimino has worked on a number of projects which never progressed beyond the pre-production stage under his direction. Some of these productions fell in development hell or were cancelled.

The following is a list of unproduced Chris Columbus projects in roughly chronological order. During his long career, American film director Chris Columbus has worked on a number of projects which never progressed beyond the pre-production stage under his direction. Some of these projects, are officially scrapped or linger in "development hell."

During his long career, American-born British film director Terry Gilliam has worked on a number of projects which never progressed beyond the pre-production stage under his direction. Some of these productions fell in development hell or were cancelled. The following is a list of projects in roughly chronological order.

The following is a list of unproduced Kamal Haasan projects in roughly chronological order. During his long career, Indian film actor-director Kamal Haasan has worked on a number of projects which never progressed beyond the pre-production stage under his acting commitments or direction. Some of these projects fell into development hell or were officially cancelled.

The following is a partial list of unproduced Alfred Hitchcock projects, in roughly chronological order. During a career that spanned more than half a century, Alfred Hitchcock directed over fifty films, and worked on a number of others which never made it beyond the pre-production stage.

The following is a list of unproduced Stanley Kubrick projects in roughly chronological order. During his long career, American film director Stanley Kubrick had worked on a number of projects which never progressed beyond the pre-production stage under his direction. Some of these projects fell into development hell or are officially cancelled.

The following is a list of unproduced Spike Lee projects in roughly chronological order. During his long career, American film director and producer Spike Lee has worked on a number of projects which never progressed beyond the pre-production stage under his direction. Some of these projects, fell in development hell or are officially canceled.

The following is a list of unproduced David Lynch projects in roughly chronological order. During his long career, American film director David Lynch has worked on a number of projects which never progressed beyond the pre-production stage under his direction. Some of these projects fell into development hell or were officially cancelled.

The following is a list of unproduced Phil Lord and Christopher Miller projects in roughly chronological order. During their career, film-making duo Phil Lord and Christopher Miller have worked on a number of projects which never progressed beyond the pre-production stage under their direction. Some of these projects are officially cancelled or fell in development hell.

The following is a list of unproduced George Miller projects in roughly chronological order. During a career that has spanned over 40 years, George Miller has worked on projects which never progressed beyond the pre-production stage under his direction. A few of the projects were made after he had left production.

The following is a list of unproduced Sam Raimi projects in roughly chronological order. During his long career, American film director and producer Sam Raimi has worked on a number of projects which never progressed beyond the pre-production stage under his direction. Some of these projects, are officially cancelled and scrapped or fell in development hell.

The following is a list of unproduced Robert Rodriguez projects in roughly chronological order. During his long career, film director Robert Rodriguez has worked on a number of projects which never progressed beyond the pre-production stage under his direction. Some of these projects are officially cancelled or fell apart in development.

The following is a list of unproduced Ridley Scott projects in roughly chronological order. During his long career, English film director and producer Ridley Scott has worked on a number of projects which never progressed beyond the pre-production stage under his direction. Some of these projects fell in development hell or are officially canceled.

The following is a list of unproduced Kevin Smith projects in roughly chronological order. During his long career, American film director Kevin Smith has worked on a number of projects which never progressed beyond the pre-production stage under his direction. Some of these projects, are officially cancelled and scrapped or fell in development hell.

The following is a list of unproduced Steven Spielberg projects in roughly chronological order. During his long career, American film director Steven Spielberg has worked on a number of projects which never progressed beyond the pre-production stage under his direction. Some of these projects fell in "development hell,' were officially canceled, were in development limbo or would see life under a different production team.

The following is a list of unproduced Quentin Tarantino projects in roughly chronological order. During his long career, American film director Quentin Tarantino has worked on a number of projects which never progressed beyond the pre-production stage under his direction. Some of these projects are officially cancelled and scrapped or fell in development hell.

The following is a list of unproduced Guillermo del Toro projects in roughly chronological order. During his decades-long career, Mexican filmmaker and author Guillermo del Toro has worked on a number of projects that never progressed beyond the pre-production stage. Some of these projects fell into development hell and are presumably canceled, while some were taken over and completed by other filmmakers.

The following is a list of unproduced Joss Whedon projects in roughly chronological order. During his long career, American film director Joss Whedon has worked on a number of projects which never progressed beyond the pre-production stage under his direction. Some of these projects are officially cancelled or fell in development hell.