A last-minute pre-Christmas surge of filming activity dramatically boosted the number of production days in Los Angeles County during the month of November.County officials reported 392 days of film production during the month, a marked turnaround from October, when there were 295 days of actual filming. The largest increase was in feature film shoots, with 107 days logged vs. 49 days last month. The November figures also are a notable increase from the 352 days of filming in November 1991. Over the past four months, film activity within the county has been somewhat erratic: August was a strong month for local filming, with 391 days recorded. That number fell to 295 days by October. It is evident from these figures that the last quarter of 1992 is turning out to be stronger in terms of local shoots than 1991. While film production crews were on location for 405 days in July 1991, vs. 324 days during July 1992, the ’92 figures begin to out-distance 1991 numbers in August, September and November. In September, for example, location crews worked 326 days this year, vs. 191 days in September ’91. There were 269 film permits issued during November, with the largest share in the area of television. There were 72 permits issued for TV filming, 56 for commercials and 47 for feature film work.