HIGH SCHOOL MUSICAL star Ashley Tisdale is...grounded. This madcap teen comedy stars Tisdale as Mandy, a girl who is invited to a big bash by Drew, the dreamiest dreamboat the halls of Mandy's high school have ever seen. In order for the evening to go well, however, Mandy's going to have to deal with Drew's bitter ex-girlfriends, thwart her overprotective father, and take on any other challenge that might get in between her and the man of her dreams in this randy romp from director Stephen Herek (DON'T TELL MOM THE BABYSITTER'S DEAD, BILL AND TED'S EXCELLENT ADVENTURE).