1. An antireflective film material, comprising: a polymer comprising copolymerized repeating units expressed by Formula (1): 28 wherein R 1a is a monovalent organic group which is capable of reacting with a crosslinking agent; R is a monovalent organic group containg a light-absorbing group; p is a number in the range 0<p<1; R 3 is a hydroxyl group, an alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, or has the same definition as that of R 2 ; R 4 has the same definition as that of R 1a or R 3 ; m is a number in the range 0&lE;m&lE;1; and n is a number in the range 0&lE;n&lE;1; an organic solvent; an acid generator; and a crosslinking agent.