Paranormal activity

I saw this movie with my friends at night. At first, I thought it was boring. Just some strange things happen, like door opened and strange sound. It got worse. There were footprints in the bed room, and the main character of the movie kept disappearing in the middle of the night. The most scary part was the ending. There were three endings and i saw all of them. Sometimes when i go to bed, i can't stop thinking of that image. My friend had a trouble sleeping for a while when it was over 3 o'clock. It is scary becase it seems real. When I hear some sound at night, I think of this movie. Paranormal activity 2 will be released soon, and this time I'll not go see it. It was too scary for me.