SANTA MONICA, Calif., Jan. 20, 2000 -- Hollywood is ready for a relatively blah box-office weekend that could see New Line's R-rated urban-appeal comedy sequel "Next Friday" hold on to the top spot. "Nothing looks real exciting," said one studio executive at mid-week. "'Down To You' (opening at about 1,900 theaters via Miramax) actually dropped a little in the tracking. It's down to a 5% first choice -- although you would think that kind of movie with teen-age appeal would be strong on Friday.