A polymerizable composition comprising: a polymerizable liquid crystal compound; and a urethane (meth)acrylate monomer, wherein the polymerizable liquid crystal compound is represented by Formula, and wherein the urethane (meth)acrylate monomer includes a urethane bond represented by Formula and three or more (meth)acryloyl groups, in Formula, A's each independently represent a cyclic divalent group that may have a substituent, wherein the cyclic divalent group is a cyclohexylene group or a phenylene group and the polymerizable liquid crystal compound includes at least one cyclohexylene group that may have a substituent and at least one phenylene group that may have a substituent; when the cyclic divalent group has a substituent, the substituent thereof is selected from the group consisting of an alkyl group, an alkoxy group, and a group represented by -C(=O)-X 3 -Sp 3 -Q 3; X 3 represents a single bond, -O-, -S-, or -N(Sp 4 -Q 4)-, or a nitrogen atom that forms a ring structure together with Q 3 and Sp 3; Sp 3 and Sp 4 each independently represent a single bond or a linking group selected from the group consisting of a linear or branched alkylene group having 1 to 20 carbon atoms and a group in which one or more -CH 2 -'s in a linear or branched alkylene group having 1 to 20 carbon atoms are substituted with -O-, -S-, -NH-, -N(CH 3)-, -C(=O)-, -OC(=O)-, or -C(=O)O-; Q 3 and Q 4 each independently represent a hydrogen atom, a cycloalkyl group, a group in which one or more -CH 2 -'s in a cycloalkyl group are substituted with -O-, -S-, -NH-, -N(CH 3)-, -C(=O)-, -OC(=O)-, or -C(=O)O-, or a polymerizable group selected from the group consisting of groups represented by Formulae Q-1 to Q-2; L represents a single bond, or a linking group selected from the group consisting of -C(=O)O- and -OC(=O)-; m represents an integer of 3 to 12; Sp 1 and Sp 2 each independently represent a single bond or a linking group selected from the group consisting of a linear or branched alkylene group having 1 to 20 carbon atoms and a group in which one or more -CH 2 -'s in a linear or branched alkylene group having 1 to 20 carbon atoms are substituted with -O-, -S-, -NH-, -N(CH 3)-, -C(=O)-, -OC(=O)-, or -C(=O)O-; and Q 1 and Q 2 each independently represent a hydrogen atom or a polymerizable group selected from the group consisting of groups represented by Formulae Q-1 to Q-2: here, at least one of Q 1 and Q 2 represents a polymerizable group; and in Formula, R represents a hydrogen atom or a hydrocarbon group. A's each independently represent a cyclic divalent group that may have a substituent, wherein the cyclic divalent group is a cyclohexylene group or a phenylene group and the polymerizable liquid crystal compound includes at least one cyclohexylene group that may have a substituent and at least one phenylene group that may have a substituent; when the cyclic divalent group has a substituent, the substituent thereof is selected from the group consisting of an alkyl group, an alkoxy group, and a group represented by -C(=O)-X 3 -Sp 3 -Q 3; X 3 represents a single bond, -O-, -S-, or -N(Sp 4 -Q 4)-, or a nitrogen atom that forms a ring structure together with Q 3 and Sp 3; Sp 3 and Sp 4 each independently represent a single bond or a linking group selected from the group consisting of a linear or branched alkylene group having 1 to 20 carbon atoms and a group in which one or more -CH 2 -'s in a linear or branched alkylene group having 1 to 20 carbon atoms are substituted with -O-, -S-, -NH-, -N(CH 3)-, -C(=O)-, -OC(=O)-, or -C(=O)O-; Q 3 and Q 4 each independently represent a hydrogen atom, a cycloalkyl group, a group in which one or more -CH 2 -'s in a cycloalkyl group are substituted with -O-, -S-, -NH-, -N(CH 3)-, -C(=O)-, -OC(=O)-, or -C(=O)O-, or a polymerizable group selected from the group consisting of groups represented by Formulae Q-1 to Q-2; X 3 represents a single bond, -O-, -S-, or -N(Sp 4 -Q 4)-, or a nitrogen atom that forms a ring structure together with Q 3 and Sp 3; Sp 3 and Sp 4 each independently represent a single bond or a linking group selected from the group consisting of a linear or branched alkylene group having 1 to 20 carbon atoms and a group in which one or more -CH 2 -'s in a linear or branched alkylene group having 1 to 20 carbon atoms are substituted with -O-, -S-, -NH-, -N(CH 3)-, -C(=O)-, -OC(=O)-, or -C(=O)O-; Q 3 and Q 4 each independently represent a hydrogen atom, a cycloalkyl group, a group in which one or more -CH 2 -'s in a cycloalkyl group are substituted with -O-, -S-, -NH-, -N(CH 3)-, -C(=O)-, -OC(=O)-, or -C(=O)O-, or a polymerizable group selected from the group consisting of groups represented by Formulae Q-1 to Q-2; L represents a single bond, or a linking group selected from the group consisting of -C(=O)O- and -OC(=O)-; m represents an integer of 3 to 12; Sp 1 and Sp 2 each independently represent a single bond or a linking group selected from the group consisting of a linear or branched alkylene group having 1 to 20 carbon atoms and a group in which one or more -CH 2 -'s in a linear or branched alkylene group having 1 to 20 carbon atoms are substituted with -O-, -S-, -NH-, -N(CH 3)-, -C(=O)-, -OC(=O)-, or -C(=O)O-; and Q 1 and Q 2 each independently represent a hydrogen atom or a polymerizable group selected from the group consisting of groups represented by Formulae Q-1 to Q-2: here, at least one of Q 1 and Q 2 represents a polymerizable group; and in Formula, R represents a hydrogen atom or a hydrocarbon group.