(written from a Production point of view)
John Savedra is an electrician and lighting technician on Hollywood films as well as an up-and-coming cinematographer. He was a lighting technician on 2009's Star Trek under Director of Photography Dan Mindel.  He also worked with Mindel as a set electrician on the 2005 films Domino and The Skeleton Key.
Savedra was a set electrician on two films which, like Star Trek, were written by Alex Kurtzman and Roberto Orci: 2005's The Island (featuring Glenn Morshower, Randy Oglesby, and Ethan Phillips) ad 2007's Transformers (featuring Glenn Morshower, W. Morgan Sheppard, and Michael Shamus Wiles). His other set electrician film credits include the hit 2007 films Pirates of the Caribbean: At World's End (featuring Lee Arenberg, Vanessa Branch, and Greg Ellis), Charlie Wilson's War (featuring Cyia Batten, pavel Lychnikoff, Brian Markinson, Rachel Nichols, and Faran Tahir), and The Bucket List (featuring Jordan Lund and Richard McGonagle).
In addition, Savedra was a lighting technician for Robert Elswit's Academy Award-winning cinematography on the acclaimed 2007 film, There Will Be Blood. More recently, Savedra was a set electrician on a trio of Paramount Pictures releases, Stop-Loss, Drillbit Taylor, and the upcoming Iron Man. He is currently working on Bedtime Stories for Walt Disney Pictures.