Supervising sound editor at Weddington Productions with credits for almost 100 film and TV productions who began in American television with "Scooby Doo, Where Are You!" (1969). After editing sound effects for "The Flintstones Comedy Hour" (1972), and "The Popeye Valentine Special" and "The New Fred and Barney Show" (both 1979), Mangini entered American film as ADR editor for STAR TREK: THE MOTION PICTURE (also 1979). Other notable film credits include THE HAPPY HOOKER GOES HOLLYWOOD and THE FINAL COUNTDOWN (both 1980), THE HAND, RAIDERS OF THE LOST ARK and PENNIES FROM HEAVEN (all 1981), POLTERGEIST and 48 HRS. (both 1982), UNDER FIRE (1983), GREMLINS (1984), EXPLORERS (1985), THE HITCHER, STAR TREK IV: THE VOYAGE HOME and SOLARBABIES (all 1986), INNERSPACE, WEEDS and THREE MEN AND A BABY (all 1987), ALIEN NATION (1988), STAR TREK V: THE FINAL FRONTIER (1989), THE GUARDIAN and ROBOCOP 2 (both 1990), BEAUTY AND THE BEAST and KAFKA (both 1991), NEWSIES and ALADDIN (both 1992), COOL RUNNINGS (1993), THE FLINTSTONES and THE LION KING (both 1994), DIE HARD: WITH A VENGEANCE (1995), PHENOMENON and SPACE JAM (both 1996), THE FIFTH ELEMENT and CONSPIRACY THEORY (both 1997), CITY OF ANGELS, SMALL SOLDIERS and LETHAL WEAPON 4 (all 1998), STIGMATA and THE GREEN MILE (both 1999), THE FLINTSTONES IN VIVA ROCK VEGAS and THE KID (both 2000), CATS & DOGS (2001), THE TIME MACHINE and THE SALTON SEA (both 2002), LOONEY TUNES: BACK IN ACTION (2003), ANCHORMAN: THE LEGEND OF RON BURGUNDY, SUSPECT ZERO and SHARK TALE (all 2004), HATE CRIME, BEAUTY SHOP, THE GAME OF THEIR LIVES and JUST LIKE HEAVEN (all 2005), 16 BLOCKS and THE RETURN (both 2006), DRAGON WARS, BLADES OF GLORY, WIND CHILL and THE MIST (all 2007), and AMERICAN TEEN and THE SPIDERWICK CHRONICLES (both scheduled for 2008).  Nominated for Sound Effects Editing 1986: STAR TREK IV: THE VOYAGE HOME  Nominated for Achievement in Sound Effects Editing 1992: ALADDIN  Nominated for Achievement in Sound Effects Editing 1997: THE FIFTH ELEMENT 3 nominations