BUSINESS
August 4, 1998 | CLAUDIA ELLER
Could Dimension Films--the hot genre division of Walt Disney-owned Miramax Films--have another "Scream" on its hands? An early test screening of the teen horror film "Halloween: H20," which debuts nationwide Wednesday, prompted the New York-based independent distributor to move its planned holiday release into the highly competitive summer dominated by big studio movies. It also prompted several major distributors to move their respective films off the Aug.