Drive Thru (2007)

Mackenzie Carpenter, a gorgeous 17-year-old girl who would kick your ass for saying so, thinks her biggest problem is dying of boredom in the bucolic wasteland of Orange County...that is until her classmates start dying of massive blood loss and Horny The Clown begins madly stalking her with cryptic messages hidden in 70's kitsch toys. It isn't until Mac discovers her unbelievable connection to Horny and his victims that she realizes, if she's gonna live to see 18, she must come face to face with the killer clown in the bloodiest week Blanca Carne, California has ever known.