Movies are released on different dates (weeks and even months apart) in different cities and countries around the world, so it is impossible to provide an answer unless you specify where in the world you are.
You can see the Related Link below for a list of release dates in different countries around the world. But different cities in each country will probably have slightly different release dates. For example, the US release date is listed as April 1, 2011, but the movie did not open in all US theatres on April 1st. April 1st is just the earliest date that the movie began playing somewhere in the country.
In fact, the release year for Insidious is listed as 2010 on IMDb, when in fact, for all intents and purposes, it opened in 2011. It is listed as opening in 2010 because it was screened at two Film Festivals in autumn of 2010. So even though 99.9999999% of the world's population couldn't see it until 2011, it's still listed as opening in 2010, because it was screened at some theatre somewhere in the world in 2010.
No, the movie is a pure work of fiction.
Dalton
IT CAME OUT ON April 1 2011
Yes, it is very good, it's my favorite scary movie.
Among the stars of the 2011 horror hit "Insidious": Patrick Wilson, Rose Byrne, Barbara Hershey, Lin Shaye and Leigh Whannell (who wrote the screenplay). The movie earned almost $100 million worldwide
Insidious 2 is said to be coming out somewhere between fall in 2013.
It's supposedly a scary movie.
No, the movie is a pure work of fiction.
10
Dalton
IT CAME OUT ON April 1 2011
Insidious, or the ;Paranormal Activity Movie Series 1,2,&3.
Yes, it is very good, it's my favorite scary movie.
Among the stars of the 2011 horror hit "Insidious": Patrick Wilson, Rose Byrne, Barbara Hershey, Lin Shaye and Leigh Whannell (who wrote the screenplay). The movie earned almost $100 million worldwide
The font used on the title for "Insidious" appears to be a customized version of the Trajan Pro font. It has been modified to create a unique look for the movie title.
The Human Centipede Last House on the Left The Grudge The Ring Insidious
Insidious is an adjective.