Did he get a hair transplant/wig?
Look at his hair only a little over a year ago:
http://www4.pictures.zimbio.com/gi/James+Franco+Art+Elysium+presents+Stevie+Wonder+kUViY3ggje6x.jpg
http://www2.pictures.zimbio.com/gi/James+Franco+Premiere+20th+Century+Fox+Arrivals+IYnDRRRhsFQx.jpg
Widow's peak and overall thinness are quite easy to spot.
Now compare this to his thick mane of jet-black hair these days:
http://www2.pictures.zimbio.com/gi/James+Franco+Disaster+Artist+Photocall+65th+HIxCIj7S_4Fx.jpg
http://www2.pictures.zimbio.com/gi/James+Franco+Academy+Motion+Picture+Arts+Sciences+2TsW_rYsyeix.jpg
Good stylist or something else?