Just to add one more variation to the mix here, we have the PF advance power, have it set by the PNF and from that point on the CA guards the throttles, since the abort is up to the Captain.
As far as the movies are concerned, I just watched Independence day the other night, and if I just flew a bunch of IMC only to be met by a wall of fire I think that as a CA I sould instinctively reach for the throttles and bend them over he firewall and do the same as an FO. As an FE I would help by kicking the throttles as far as they would go and then getting the pedals out and pedalling as fast as I could (I mean that literally). And please remember, this is a literal "firey wall of death" scenario, not you're average go around.