The sci-fi genre, short for science fiction, features imaginative and futuristic concepts that are often rooted in scientific principles, technology, and possibilities. These stories delve into "what if" questions and can serve as a platform to address contemporary social, political, and ethical issues by projecting them onto future or alternate settings.

James Earl Jones and David Prowse in Star Wars: Episode V - The Empire Strikes Back (1980)

The short form refers to creative works characterized by their brevity and concise storytelling. Unlike full-length feature films, short films have a running time of less than 45 minutes, while TV shorts have a running time of less than 22 minutes.

Benedict Cumberbatch in The Wonderful Story of Henry Sugar (2023)

Matt and Jenna introduce the Doctor Who Christmas Prequel, The Great Detective, in which Vastra, Jenny and Strax try to persuade the grumpy Doctor to engage again.

Get a closer look at some of Hollywood's perfect pairs.

Hollywood Power Couples

Get a closer look at some of Hollywood&#39;s perfect pairs.

"The Gentlemen" and "Slow Horses" return this fall, while the "Reacher" spin-off series "Neagley" makes its debut. See our guide of the biggest Fall TV and streaming releases.

2026 Fall TV and Streaming Watch Guide

&quot;The Gentlemen&quot; and &quot;Slow Horses&quot; return this fall, while the &quot;Reacher&quot; spin-off series &quot;Neagley&quot; makes its debut. See our guide of the biggest Fall TV and streaming releases.

Get a closer look at these actors from their many TV and streaming series roles.

Streaming Stars, Then and Now

Doctor Who: The Bells of Saint John: A Prequel

Doctor Who: The Bells of Saint John: A Prequel (2013)

Alex Kingston and Matt Smith in Doctor Who (2005)

Doctor Who: The Battle of Demon's Run: Two Days Later

Neve McIntosh, Catrin Stewart, and Dan Starkey in Doctor Who (2005)

Doctor Who: Vastra Investigates - A Christmas Prequel

Doctor Who: Vastra Investigates - A Christmas Prequel (2005)

Paul McGann, Colin Baker, Tom Baker, Peter Davison, and Sylvester McCoy in The Five(ish) Doctors Reboot (2013)

Doctor Who: Prequel to Asylum of the Daleks

Doctor Who: The Great Detective

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