Robert De Niro, Sylvester Stallone to Face Off in 'Grudge Match'

Warner Bros. has given the go-ahead for the boxing flick Grudge Match, which will pair Robert De Niro and Sylvester Stallone as two retired boxers who step back into the ring, Deadline reports. Kevin Hart has also been cast as the boxing promoter who convinces the two athletes to fight again.

No premiere date has been revealed yet, but the film will be based on an original script by Tim Kelleher, with the most recent draft written by Doug Ellin (creator of Entourage). Billy Gerber, Mark Steven Johnson and Michael Ewing are set as producers.