James Gunn’s 2025 comic book tentpole, Superman still needs “lots” of work after wrapping filming at the end of July, but the writer-director is not going to do too many reshoots to complete the DC movie. “Heck no. Once you’re done shooting you’ve only just begun!” Gunn replied on Threads in a message to fans who were curious about the movie.

“Still lots of editing, VFX, sound, and scoring to be done!” In response to a follower's speculation that a big amount of time would also be spent on reshoots, Gunn flexed, “I don’t know. I’ve done a total of one day of reshoots on my past two films combined,” referencing 2023’s Guardians of the Galaxy Vol. 3 for Marvel and 2021’s The Suicide Squad for DC.

When one user asked how he does it, Gunn revealed six tips. “1) Over-prepare,” Gunn shared. “2) Don’t start shooting until I have a finished script my whole team is happy with 3) Hire actors and department heads I know can do their jobs 4) Surround myself with people who will challenge me and not just yes-sir everything 5) Ask myself daily – are there any small imperfections in the script or what we’re shooting that might end up feeling like huge imperfections when we cut the film together? 6) 1 and 2 again!”.