There is a lot that goes into making a blockbuster movie that a lot of people don’t realize, and for good reason. Movies have a profound effect on our lives and influence us in a variety of ways. Check out these amazing facts about famous movies and don’t forget to share them with your friends.

1 The weird barking sound the raptors use to communicate in “Jurassic Park”, is actually the sound of tortoises having sex.

Another interesting fact is that it took 6 hours to render a single frame of the rain soaked T-Rex. (source)

2 Although not as successful as the sequels, the first “Paranormal Activity” movie cost less than $15,000 to make, but grossed over $193,000,000. That’s some return of investment.

3 The budget to film “Titanic” was actually larger than the cost to build the actual Titanic.

The cost to construct the Titanic in 1910-1912 was £1.5 million or $7.5 million (at the time). Adjusted to inflation this was $120-150 million in 1997. However, the movie cost around $200 million to make. (source)

4 The movie “Gravity” had a $100,000,000 budget and was more expensive than the Indian Mars Mission.

The Indian Mars mission was the cheapest successful mission to date and cost $74 million. This was less than three quarters the cost to film the movie “Gravity”.(source)

5 The 1976 classic “Rocky” was shot in just 28 days.