(detailed information about this entry from Wikipedia)
Perfect Stranger is a 2007 thriller film starring Halle Berry and Bruce Willis. It is distributed by Columbia Pictures and Revolution Studios.
 Plot synopsis
Rowena Price (Halle Berry), is a reporter who goes undercover to solve the murder of her childhood friend, Grace, with the help of her co-worker and friend Miles (Giovanni Ribisi). She suspects the murder was committed by Harrison Hill (Bruce Willis), a wealthy businessman with a chequered past.
 DVD Release
Perfect Stranger is scheduled to be released on August 21, 2007 on DVD and Blu-ray.
 Movie Promotion
Beginning on February 7, 2007, NEED2NO413, a user on YouTube began uploading mini-movie clips as a drama series. All the movie clips feature actress Paula Miranda.
The characters of Grace , Josie the personal assistant , and Mrs. Hill  all have blogs dating back to September or October 2006 with YouTube videos of the respective actresses, in character, speaking the text of the entry with minor changes. This is a relatively new form of viral marketing similar to an alternate reality game, and has convinced at least a few commenters that the blogs are real despite the fact that the movie's official site is linked in the last entries of all three blogs.
 External links