Conversation so far:
what is a feature film Mark Romanek did?
In 2002, Romanek wrote and directed his second feature film, One Hour Photo.
was One Hour Photo successful?
The film One Hour Photo was a commercial success, grossing $52.2 million against a $12 million budget.
what film did Mark Romanek make next after One Hour Photo?
In 2005, Romanek was scheduled to direct a film adaptation of the book A Cold Case, but the project languished in development hell.
why was A Cold Case project considered  in development hell?
Director Mark Romanek was signed to helm the project, but Tom Hanks chose to do The Polar Express (2004) instead, and the project came to a halt.
what's another feature film Mark Romanek worked on besides One Hour Photo?
Mark Romanek's third feature was the 2010 British dystopian drama Never Let Me Go.
did any of Mark Romanek's feature films win awards?
Mark Romaneck's films have been nominated for several awards.

Question: what was his most famous feature film?
Self-contained rewrite: what was Mark Romanek's most famous feature film?