A vehicular lamp comprising: a lens Portion (100a, 100b); and a light source portion configured to emit light toward the lens portion, wherein: the lens portion ((100a, 100b) includes a body including at least one curved surface and a film Portion ( 120a, 120b) disposed on one side of the and configured to form a three-dimensional image using the light; the film portion ( 120a, 120b) includes a plurality of unit optical films ( 126, 128, 129) configured to form the three-dimensional image, and a base film interposed between the plurality of unit optical films (126, 128, 129) and the body; and the plurality of unit optical films ( 126, 128, 129) are disposed apart from each other by a predetermined separation distance (d2, d3) to form a slit ( 127, 127a) between the plurality of unit optical films (126, 128, 129), charactherized in that patterns (123, 124) configured to form the three-dimensional image are formed on each of one side and the other side of each of the plurality of unit optical films (126, 128, 129) and wherein patterns formed on said one side are elongated in a longitudinal direction of the unit optical film, and patterns formed on the other side are elongated in a direction forming a predetermined angle (θ) with respect to said longitudinal direction. a lens Portion (100a, 100b); and a light source portion configured to emit light toward the lens portion, wherein: the lens portion ((100a, 100b) includes a body including at least one curved surface and a film Portion ( 120a, 120b) disposed on one side of the and configured to form a three-dimensional image using the light; the film portion ( 120a, 120b) includes a plurality of unit optical films ( 126, 128, 129) configured to form the three-dimensional image, and a base film interposed between the plurality of unit optical films (126, 128, 129) and the body; and the plurality of unit optical films ( 126, 128, 129) are disposed apart from each other by a predetermined separation distance (d2, d3) to form a slit ( 127, 127a) between the plurality of unit optical films (126, 128, 129), charactherized in that patterns (123, 124) configured to form the three-dimensional image are formed on each of one side and the other side of each of the plurality of unit optical films (126, 128, 129) and wherein patterns formed on said one side are elongated in a longitudinal direction of the unit optical film, and patterns formed on the other side are elongated in a direction forming a predetermined angle (θ) with respect to said longitudinal direction. the lens portion ((100a, 100b) includes a body including at least one curved surface and a film Portion ( 120a, 120b) disposed on one side of the and configured to form a three-dimensional image using the light; the film portion ( 120a, 120b) includes a plurality of unit optical films ( 126, 128, 129) configured to form the three-dimensional image, and a base film interposed between the plurality of unit optical films (126, 128, 129) and the body; and the plurality of unit optical films ( 126, 128, 129) are disposed apart from each other by a predetermined separation distance (d2, d3) to form a slit ( 127, 127a) between the plurality of unit optical films (126, 128, 129), charactherized in that patterns (123, 124) configured to form the three-dimensional image are formed on each of one side and the other side of each of the plurality of unit optical films (126, 128, 129) and wherein patterns formed on said one side are elongated in a longitudinal direction of the unit optical film, and patterns formed on the other side are elongated in a direction forming a predetermined angle (θ) with respect to said longitudinal direction.