No, marked head forehead protectors are a pretty common thing in ninja folklore.
That probably is a Sakura cosplay though; the shirt and skirt are wrong (Sakura's shirt is red and she wore shorts under her skirt), but she has the same sandles, gloves, and leg holster.
Mauvais said: There's a new Naruto movie coming out soon or something, right? I thought I saw a preview in the intro some weeks back (haven't looked recently).