Avid movie watchers create fan theories as something to fill the plotholes in famous films. Sometimes, these are discredited by the creators of the movie, but when left unchecked, the theories can change your whole perspective of a movie. Check them out.
Mary Poppins Is a Time Lord
This one claims that Mary Poppins has many similarities with the longest running sci-fi series Dr. Who! She's British; she has an unusual self-image, and her purse has time-space bending abilities. Could she have been the first Dr. Who?
Aladdin Is Set in a Post-Apocalyptic Future
The Genie in Aladdin knows many things about what happened after the middle ages. In fact, he states that he's lived in the lamp for ten thousand years, and since it was made in the 3rd century, the story of Aladdin can be dated to the year 10,300. Here, humanity is reduced to living in deserts.
Forrest, You're NOT the Father
From what we know of the characters in Forrest Gump, Jenny was very free-spirited and she even managed to get AIDS. There is no actual evidence of who Forrest Jr.'s father is, but it is speculated that Jenny entrusted Forrest to take care of her child.
The Wizard of Oz: Doppelgangers in a Parallel Universe
The land of Oz appears to be a parallel world since the characters have their counterparts in Kansas. Dorothy's three companions are her uncles, and Almira Gulch is the Wicked Witch of the West. The theory states that since Dorothy didn't have her counterpart in Oz, she had to kill her to take her place.