Where can I find a dress similar to the one that Regina George wore to the Spring Fling in "Mean Girls"?

I am guessing you got the idea watching Mean Girls on tv last night? That's okay, I watched it too, it is one of my favorite movies!  Though without knowing the brand, I won't be able to find the exact dress, but I can find similar!  Prom girl has a pretty pink dress with black belt/sash selling for $149.00
specifics
Looking for a fabulous dress for your 2010 homecoming or prom? This beautiful short strapless dress has a demure knee length. A homecoming dress that features vertical shirring overlaying the strapless empire bodice and a flared a-line knee length skirt. Available in many colors this strapless dress for homecoming will have all eyes on you.

Ebay has a pink and black formal dress selling for $29.95
specifics:

Occasion:	Formal Gown	Sleeve Style:	Spaghetti Strap
Dress Length:	Above Knee, Mini	Size Type:	Misses
Size:	3	Main Color:	Pink
Condition:	Pre-Owned	Brand:	GUNNE SAX