Ever wonder why no one sings the real "Happy Birthday" song on television?

The real song is actually protected by copyright. That means that it cannot be used without permission for commercial uses. This includes in movies, tv shows, and commercials. Don't worry though. You won't get sued for singing it at home for your own birthday party.

The original tune for the song was originally for a song called "Good Morning to All". Since then, it has been recorded with the words we now know, and as of 1934 it has been copyright protected. The copyright isn't set to expire until at least 2030. That's nearly 100 years after the original copyright was secured!

"Happy Birthday to You" brings in roughly $2 million in royalties every year. Much of that has gone to charities.

Walt Disney never allowed the actress who played Snow White to make another film.

An early publicity still for Snow White and the Seven Dwarfs,
signed by Adriana Caselotti, right.

Actress Adriana Caselotti did not even receive credit for appearing in Snow White and the Seven Dwarfs! These tactics were not some strange form cruelty on the part of Walt Disney, however - Disney thought the illusion of Snow White would be ruined if the public knew which actress had provided her voice. Caselotti was under contract with the Disney Studio, so it was legally his right to make such a choice.

And let’s not forget - Snow White was the first feature-length animated film to be produced in the United States. This means that there was no precedent for how to treat voice actors. Therefore, Walt had a perfectly logical argument in thinking that cartoon voice actors should remain obscure in order to preserve the magic behind their onscreen characters!

Source: AnimatorMag

The movie Avatar takes up over one petabyte of storage space.

A petabyte is the equivalent of 500 hard drives, each with a capacity of 2 terrabytes (a terrabyte to 1,000 gigabytes!). That’s the size of a 32 YEAR long mp3 file!!

The movie was shot in 3-D and rendered in one of the most powerful data centers in the world. Its computing core adds up to 40,000 processors and 104 terabytes of RAM. It would be realistic to assume that a significant portion of the film's $300 million budget went to storage space.

Before working on Avatar, actor Sam Worthington was living in his car!

He was already an actor in Australia at the time, but Worthington was living in his car prior to meeting James Cameron and landing the Avatar role. Worthington also has worked in the past as a bricklayer. Definitely an unusual background for someone in one of the most successful movies of all time.