Born in Stockholm, Sweden; son of Swedish actors. He entered Swedish film in 1959 as Ernst R. Rolf, editing RYMDINVASION I LAPPLAND. After moving to the US, Rolf was production co-ordinator on "The Big Valley" TV series from 1966 to 1969. Other notable editing credits (alone or in collaboration) include THE MCKENZIE BREAK (1970), THE LAST AMERICAN HERO, THE LOLLY-MADONNA WAR and THE MAN WHO LOVED CAT DANICING (all 1973), FRENCH CONNECTION II and LUCKY LADY (both 1975), TAXI DRIVER (1976), BLACK SUNDAY and NEW YORK, NEW YORK (both 1977), HARDCORE and PROPHECY (both 1979), HEAVEN'S GATE (1980), GHOST STORY (1981), "The Executioner's Song" (1982, TV), WARGAMES and THE RIGHT STUFF (both 1983), THIEF OF HEARTS (1984), NINE ½ WEEKS (1986), OUTRAGEOUS FORTUNE and STAKEOUT (both 1987), BLACK RAIN (1989), JACOB'S LADDER (1990), SNEAKERS (1992), THE PELICAN BRIEF (1993), DANGEROUS MINDS and HEAT (both 1995(, THE DEVIL'S OWN (1997), THE HORSE WHISPERER (1998), WINDTALKERS and EQUILIBRIUM (both 2002) and CRAZY (2006).  Film Editing 1983: THE RIGHT STUFF (w. Lisa Fruchtman, Glenn Farr, Stephen A. Rotter & Douglas Stewart) 1 nomination, 1 Award