· Media

Many items in the media, mainly science fiction, are concerned with time travel. Below are a few examples of my favourite films, books and serials relevant for time travel and wormholes.

Books

First to be mentioned must be H.G. Wells, The Time Machine. As this was made into a film and remade. This book/films has an example of a paradox contained within, the scientist's fiancée dies as a results he creates a time machine to try to save her yet he cannot. This is because his creating the time machine is a direct result of his fiancée's death therefore he cannot use it to save her as its existence would be tittering on a balance.

Serials

Sliders; a series in which a student genius creates a wormhole to another parallel universe but his machine breaks and the group of "sliders" jump to another parallel universe each week.

Stargate SG1; this is a spin-off from the film, here the stargate is the device which allows a team to travel to other worlds and dimensions. The stargates are points at which wormholes can open for some time to allow people to walk through them. You can "dial" to other stargate to change your destination.

Films

The Time Machine; as mentioned before is also a film.

The Back to the Future Triology; this is where a mad scientist invents a "flux time capacitor" a device which is essential for time travel. Here it is built into a DeLorean pictured below.

This trilogy starts with the scientist's (Dr Emmett Brown) friend Marty McFly going back in time accidentally which leads to one mishap after another, as once Marty is back in time he must not disturb anything as he could end up not existing! So the first film deals with a paradox of the past but as a result everything works out better.

The second film deals with going to the future. While in the future the enemy of Marty's dad borrows the time machine to help himself in the past, which gives rise to a tangent universe or parallel universe. 

The third is dealing with going back in time to the wild west and hasn't much relevance here as the first two films deal with the important parts of time travel.

Link to website; http://www.bttf.com

Donnie Darko; this is an exceptional film, in which time travel is considered from to different approaches at the same firstly from the physical approach (scientific) and also from religion. The film highlights in my opinion how time travel is impossible, even though it may be possible from basic physics theoretically. Even it is possible and people are continually traveling through it would make no difference to anyone other than the person who traveled through time. If the person changed something then everyone else would not notice as whatever had changed would feel like it had always been that way.  

In the film Donnie is subject to behavioral problems, also he supposedly has hallucinations in which he talk to a man dressed as a bunny called Frank. He appears to be controlled by Frank. 

To understand this more watching of the film is recommended followed by visiting the website, http://www.donniedarko.com

All of the above in written as I have interpreted each film I have watched it is an opinion and nothing more.