I got a CONGRATULATIONS on the screen and it said YOU WON A $5 OFF COUPON...  What?????
 

This is what's offered for Instant Win prizes on this Sweep:

Pretty Maids, Inc. - Bridesmaids the Movie Sweepstakes   New
Pretty Maids, Inc. - Bridesmaids the Movie Sweepstakes   New 
Grand Prize (1) the Ultimate Bachelorette Party which includes an exclusive screening of the movie Bridesmaids with up to fifty of their closest friends and family, ARV $2,500. Instant Prize (50) one Blu-ray copy of the movie "Bridesmaids", ARV $25.00; (50) one iTunes download of the soundtrack, ARV $11.00.   
Restrictions : 17+ US | Limit : 1 Per Person / Email | Added : 09-18-11 | Expires : 09-26-2011 | Hits : 860 | Rules    

Where in this does it say a coupon... I feel ripped off
 

Right, the rules don't mention the $5 coupon as a prize, so it would be more accurate if they didn't call it a win.

At the end of the rules, in bold, it says, "By entering the Sweepstakes, entrants agree that Pretty Maids, and each of the Vendors and
their respective affiliates, subsidiaries and licensees may send you promotions and special offers they feel may
be of interest to you." Maybe the $5 off coupon falls loosely into that category??

Since you didn't win one of the prizes listed as IW Prizes, you can probably try to keep playing.

Here's a link to the Comments under the sweeps listing:
http://www.sweepstakesplus.com/vviewtopic.php?link_id=425016


Another case of "win" and "offer" which highlights how sweeps are being used for advertising, to bring our attention to their products.