If you caught Barbenheimer at your local theatre, Barbie’s 1 hour 54 minute runtime felt a lot more tolerable than Oppenheimer’s three hours. If you’re keeping track at home, this 129-minute runtime is almost exactly the same as Superman II (127 minutes) and Superman III (125 minutes). Justice League (2017) was shorter than Superman, but Zack Snyder’s Justice League was much longer. Warner Bros.It’s only right Gunn kick off his DC blockbuster era with a shorter movie. During Zack Snyder’s tenure, movies could stretch well into the 2.5-hour mark, and that’s not even considering the four-hour Snyder Cut.