Justin Timberlake to Amanda Seyfried: Talk to the Hand (PHOTOS)

Justin Timberlake really seems to have his hands full.

The Social Network star was on the Los Angeles set of his upcoming sci-fi thriller I’m.Mortal on Wednesday, filming with his co-star Amanda Seyfried (sporting a red wig). Was Timberlake holding his hand over Seyfried’s mouth for plot purposes, or was he merely trying to prevent her recent cheating rumors?

Decide for yourself while clicking through the photo gallery. How do you think Amanda looks as a redhead? Let us know in the comments section.