DreamWorks is waiting for Paul Greengrass to submit an official budget for “The Trial of the Chicago 7,” which the studio wants to make for just under $30 million.

Greengrass and his producers are scrambling to trim down their initial projection of around $35 million. DreamWorks hope to see a formal budget in the coming weeks.

“I am hoping to make the movie with him, and hopefully we can figure this out…we’re going through the process,” said DreamWorks CEO Stacey Snider. “This is a brilliant script and timely movie about an invigorated, energetic youth culture with a director whose skills are perfectly suited to the material.” Until DreamWorks gets comfortable with a budget, the film awaits an official greenlight.

DreamWorks has been trying to get the project off the ground for several years — Steven Spielberg at one point was eying it as a possible directing gig.

Aaron Sorkin penned the script and Scott Rudin is producing the drama based on the real-life events surrounding the aftermath of the 1968 protests at the Democratic National Convention.

Greengrass’ upcoming “Captain Phillips,” which opens the New York Film Festival, stars Tom Hanks and bows in theaters Oct. 11.