NEW YORK — Amber Heard hired a private detective who used to be an adult film star to dig up dirt on her ex-husband, Johnny Depp, in the summer of 2019. Paul Barresi was a mustachioed stud who appeared in “Co-ed Fever,” “Bad Girls II” and other X-rated films. Reinvented as a private detective, he’s worked for Tom Cruise, Eddie Murphy and Sylvester Stallone. Now he’s an issue in Depp’s $50 million defamation suit against his ex-wife, who claims Depp repeatedly assaulted her. In a deposition taken in April 2021, Depp’s lawyer Ben Chew asked Heard’s former attorney Eric George whether he was awar…
