Someone asked me why there wasn't a Stan Lee cameo in X-Men: First Class, & the honest answer is...there just wasn't enough time to make the logistics work.— Zack Stentz (@MuseZack) November 16, 2018
During production, I asked the studio exec in charge of First Class at if the film was gonna be in 3-D and he replied "We're making this thing so fast, you'll be lucky if it's in focus."— Zack Stentz (@MuseZack) November 16, 2018
For a giant, VFX-heavy film, First Class had an INCREDIBLY accelerated development schedule. We went from no script, no director, & no actors attached in April 2010 to a film in theaters in June 2011.— Zack Stentz (@MuseZack) November 16, 2018
Comments by January Jones from 2011:
"I think it was unrealistic for them to think they were going to make such a huge movie in whatever we had -- two months or something. So of course we went over (schedule). I think I have a couple more days to shoot... We're almost done. The fact we've had to push the wrap date but they haven't moved the release date is really interesting to me. I guess they must know what they're doing.