Time travel movies are a Hollywood favorite, as they are exciting and rich with story, yet they are also a constant paradox and incredibly difficult to tell accurately. One of the main problems with telling a time travel story is that everything that is changed in the past changes the future in at least some way, be it drastic or not. Check out some of the most notable time travel movies listed below, where characters changed their own pasts through their adventures.

Evan from "The Butterfly Effect".

By reading old diary entries, Evan is able to return to his old childhood blackouts, explain why they occurred and possibly change them from happening in the first place. Unfortunately, every time he returns to the present, the time travel changes him, often for the worse. It sounds cool until you realize the movie doesn't make any sense, due to the fact that he's time traveling by reading a journal and changing so many things in the past that it would change so many other things in the future.

Jack Starks from "The Jacket."

A war vet is put into a straight jacket and then put in solitary in a mental institution. He is then somehow transported fifteen years into the future, where he meets a woman who he falls in love with. By sharing his knowledge of the past with her, he saves the fate of his own daughter in the future.

The Guys in "Hot Tub Time Machine."

Four guys return to the ski resort they partied in when they were in high school in the 80s to right the places where their lives took a wrong turn. Despite this premise being ridiculous, it's so funny that you really won't care at all.

Austin Powers in "The Spy Who Shagged Me".

Austin goes back in time to 1969 to keep Dr. Evil, who has also traveled back in time, from stealing his Mojo. The result? Lots of laughs. And Austin stops Dr. Evil. Sorry for the shocking spoiler.

The Crew in "Galaxy Quest". 

The crew travels thirteen seconds back in time to prevent their ship from actually being destroyed, even though they basically don't know what the hell they are doing. Ultimately, traveling thirteen seconds back in time does save the ship's crew, as a lot can change in that span of time.

Lola in "Run Lola Run". 

In this hit German indie film, Lola tries to save her boyfriend's life by doing three different actions, all of which lead to different storylines and possibilities. We see all of these storylines play out before our eyes at a lightning quick pace. It may be one of the best time traveling films ever made because there is no attempt at an explanation and no real need for one.

Marty McFly in "Back to the Future".

In the most famous time traveling film ever made, Marty McFly travels back to the 50s and changes everything in his dysfunctional family's past, making them whole and better again. This is the ultimate Hollywood time travel movie, due to the Hollywood feel good elements, the 80s style and music and the parental love story that just about every kid wonders about.