We were tasked with transforming The Rock into his pudgy former teenage self in the flashback scene.
The Rock acted his scenes on a mocap stage, wearing a facial capture rig. We took that mocap data and used it to drive a digital replica of his face, which we based on pictures of him as a teenager. Sione Kelepi acted on-set, playing the younger version. On the live footage, we tracked Sione's head as he moved and replaced his face with the animated digital version of The Rock.