Now , the first direct evidence of eavesdropping by Mr. Pellicano has surfaced in newly filed court documents : excerpts of what prosecutors have described as Mr. Pellicano 's summaries of conversations he intercepted in 2001 between Vincent Zenga , a screenwriter and producer known as Bo , and his lawyer , Gregory S. Dovel , during their contentious suit against the influential Hollywood executive Brad Grey , now head of Paramount Pictures .