The true story follows protesters who disrupted the 1968 Democrat party convention with an anti-Vietnam war “carnival” that turned nasty.
This will mark Gordon-Levitt and Rogen’s third major pairing after 50/50 and The Night Before, while Redmayne and Cohen appeared together in 2012’s Les Misérables.
Demonstrators threw bricks, police responded with tear gas and the center of Chicago was engulfed in flames.
The police were not charged but the protesters were accused of inciting a riot.