Some tweets today from the S.H.I.E.L.D. crew show filming is certainly under way.
Maurissa Tancharoen teases fans by tweeting some photos from set including a call to come up with what “M.A.U.R.I.S.S.A.” stands for and a picture of director Joss Whedon between takes.
So it begins. The "Come up with what this stands for" contest. #SHIELD http://t.co/8vUNzDwX
— Maurissa Tancharoen (@MoTancharoen) January 22, 2013

It’s plain to see the humor involved in naming the directors chairs with acronyms, after all, this is a series called “S.H.I.E.L.D.”
These are really important. #SHIELD http://t.co/emWRfq9t
— Maurissa Tancharoen (@MoTancharoen) January 22, 2013
These are really important. #SHIELD http://t.co/emWRfq9t
— Maurissa Tancharoen (@MoTancharoen) January 22, 2013
Joss in between takes. http://t.co/XOhDpVRs
— Maurissa Tancharoen (@MoTancharoen) January 22, 2013
Chief Creative Officer of Marvel Entertainment, Joe Quesada is also on set today and joins in the fun posting the following tweets.
Cameras everywhere, crew, actors, multiple Whedons… HOLY $#%! this is really happening!
— JoeQuesada (@JoeQuesada) January 22, 2013
Exclusive SHIELD footage http://t.co/2tUAgJhf
— JoeQuesada (@JoeQuesada) January 22, 2013
Yes, those were Joss' kicks.
— JoeQuesada (@JoeQuesada) January 22, 2013
A tad surreal http://t.co/NFgW5YL8
— JoeQuesada (@JoeQuesada) January 22, 2013