The movie stars Jeremy Renner, who takes the lead in the film, but not as Jason Bourne; Ed Norton and Rachel Weisz. Joan Allen and Albert Finney recently joined the project to reprise their roles from previous Bourne outings.
Tony Gilroy, who wrote all three Bourne films, wrote the script for 'Legacy' and will direct.
Keach's breakout role was as an ex-boxer in John Huston's 1972 'Fat City' (which also starred Jeff Bridges). He also starred in 1972's 'The New Centurions,' 1981's thriller 'Road Games,' as Ernest Hemingway in 1988's mini-series 'Hemingway,' and much, much more. But he's probably best known for playing Mike Hammer in the television series 'The New Mike Hammer,' which ran from 1984 to 1987.
'Legacy' is due to be released Aug. 3, 2012.
Tip o' the hat to TheWrap.