'Scrubs' star Zach Braff has turned down the lead role in the upcoming Fletch movie 'Fletch Won'.

Speaking to the US magazine TV Guide, 'Scrubs' creator Bill Lawrence, who wrote and will direct 'Fletch Won', said: "Zach is writing and directing his own film ['Open Hearts'] at Paramount."

He continued: "We were looking forward to doing this thing together, but when you get an opportunity like that, you've got to take it."

Braff and Lawrence will work together again when the seventh, and final, series of 'Scrubs' begins production in August.