Klein edited The Bourne Identity (directed by Doug Liman - 2002), which was the first in the series of films based on the novels of Robert Ludlum. Christopher Rouse, who worked as an additional editor on The Bourne Identity, edited the subsequent films that were directed by Paul Greengrass. Klein subsequently co-edited The New World (2005) (again with director Terrence Malick); Malick's films have typically used several editors. Klein recently edited Jumper (2008) (with director Doug Liman).
Klein has written and directed two short films, Nouveau Riche No. 11 and Nouveau Riche No. 34, which have been shown at several film festivals.[2]