Nick Nolte, Mena Suvari and Jon Foster have joined the cast of the indie, The Mysteries of Pittsburgh for Groundswell Productions, the company's first.

Sienna Miller and Peter Sarsgaard are already part of the film being written and directed by Rawson Marshall Thurber. It's based on the debut novel by Pulitzer Prize-winning author Michael Chabon about Art Bechstein (Foster), a recent college graduate trying to escape the clutches of his mobster father (Nolte). The Hollywood Reporter adds the story follows the last summer of Art's youth as he falls into a love triangle with Jane (Miller) and Cleveland (Sarsgaard), a charismatic couple who draw him into a series of exhilarating adventures that ultimately pit him against his father. Suvari will play Phlox, Art's eccentric part-time girlfriend and boss at a discount book chain.

Filming for The Mysteries of Pittsburgh is expected to begin September 5th in Pittsburgh.