[Community wiki]: The results of a collaboration by The Dragonista, Haobin, Marmy1954 and Gamow:
Number 1:
FWAAF = Four Weddings and a Funeral
Number 2:
TGTBATU = The Good, the Bad and the Ugly
Number 3:
BOTFOJ = Born on the Fourth of July
Number 4:
IJATTOD = Indiana Jones and the Temple of Doom
Number 5:
WEHTBJ = What Ever Happened to Baby Jane
Number 6:
HPATPOA = Harry Potter and the Prisoner of Azkaban
Number 7:
OFOTCN = One Flew Over the Cuckoo's Nest
Number 8:
HISTK = Honey, I Shrunk the Kids
Number 9:
BCATSK = Butch Cassidy and the Sundance Kid
Number 10:
TWOO = The Wizard of Oz
Number 11:
MPATHG = Monty Python and the Holy Grail
Number 12:
TSOTL = The Silence of the Lambs
Number 13:
SM = Slumdog Millionaire
Number 14:
LEDP = Les Enfants du Paradis
Number 15:
OBWAT = O Brother, Where Art Thou?
Number 16:
TBOTRK = The Bridge On The River Kwai
Number 17:
LAC = L.A. Confidential
Number 18:
CK = Citizen Kane
Number 19:
NCFOM = No Country for Old Men
Number 20:
TDCOTB = The Discreet Charm of the Bourgeoisie
Number 21:
MIGP= Mission: Impossible - Ghost Protocol
Number 22:
FMJ = Full Metal Jacket
Number 23:
CATCF = Charlie and the Chocolate Factory
Number 24:
MSGTW = Mr. Smith Goes to Washington