Sparkler (1999)

Melba May is a trailer park princess who decides she needs to radically change her life when she catches her husband in bed with her best friend. After a night of drinking at the local bar she befriends three recent college grads from Los Angeles who are en route to Las Vegas to hopefully win some money to pay rent. She joins them, happy to leave her husband for good -- until he finds out that she has won a million dollar sweepstakes and must hunt her down.