good idea mate, I tried now ! but I dont know why anyone does not
think it

!?
Come again please? What do you mean with
think? Do you mean
know?
Not every movie or TV or series production publishes their equipment details, what lights they have used (ARRI?), what camera(s) they have recorded with (RED, Sony, ARRI, Panasonic, ...), what device was responsible for sound recording (Zaxcom, Sound Devices, Tascam, Marantz, ...) or what editing applications they used (Avid MC, FCP, Premiere, Vegas, ...) or even what software was involved in the process after editing it (Fusion, Nuke, Shake, Color, AE, ...).
Sometimes you see an Avid credit in the closing credits of some productions or even an Apple logo, but that is not really done with every production.
Anyway, of all the production houses I worked with (four), all used Avid Media Composer, two used Windows, two used Mac OS X.
Major films edited with Final Cut Pro
The Rules of Attraction (2002)[6]
Full Frontal (2002)[6]
The Ring (2002)
Cold Mountain (2003) (Academy Award nominee for Best Editing – Walter Murch)[6]
Intolerable Cruelty (2003)
Open Water (2003)
Napoleon Dynamite (2004)
The Ladykillers (2004)
Sky Captain and the World of Tomorrow (2004)
Super Size Me (2004)
Corpse Bride (2005)
Dreamer: Inspired by a True Story (2005)
Happy Endings (2005)
Ellie Parker (2005)
Jarhead (2005)
Little Manhattan (2005)
Me and You and Everyone We Know (2005)
300 (2007)[6]
Black Snake Moan (2006)
Letters from Iwo Jima (2006)
Happy Feet (2006)
Zodiac (2007)
The Simpsons Movie (2007)
No Country for Old Men (2007) (Academy Award nominee for Best Editing – Roderick Jaynes)
Reign Over Me (2007)
Youth Without Youth (2007)
Balls of Fury (2007)
The Tracey Fragments (2008)
Traitor (2008)
Burn After Reading (2008)
The X-Files: I Want to Believe (2008)
X-Men Origins: Wolverine (2009)
(500) Days of Summer (2009)
Where the Wild Things Are (2009)[6]
A Serious Man (2009)
Tetro (2009)
Just for the Record (2010)
copied and pasted from
http://en.wikipedia.org/wiki/Final_Cut_Pro#Major_films_edited_with_Final_Cut_Pro
Ups,
LethalWolfe had the same idea.