Crosslinking compound and film comprising the same

A film comprising a crosslinking compound, wherein the crosslinking compound is represented by Formula 1 below:

• wherein, in Formula 1,
• L1 and L2 are each independently a single bond or a C1-C30 alkylene group unsubstituted or substituted with at least one R20,
• m1 and m2 are each independently 0, 1, 2, 3, 4, 5, or 6,
• Ar1 to Ar4 are each a C5-C60 carbocyclic group unsubstituted or substituted with at least one R20 or a C1-C60 heterocyclic group unsubstituted or substituted with at least one R20,
• n1 and n2 are each independently 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10,
• the sum of n1 and n2 is greater than or equal to 2,
• Q1 is a single bond, O, S, C, C(R3), C(R3)(R4), N, N(R5), P, P(R5)(R6)(R7), P═O(R8), SO2, or a C1-C30 alkylene group unsubstituted or substituted with at least one R20,
• X1 is O, S, Se, N(R9), or C(R9)(R10),
• X2 is O, S, Se, N(R11), or C(R11)(R12),
• R1 to R12 and R20 are each independently hydrogen, deuterium, —CF3, —CCl3, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a C1-C30 alkyl group, a C2-C30 alkenyl group, a C2-C30 alkynyl group, a C1-C30 alkoxy group, a C1-C30 alkylthio group, a C5-C60 carbocyclic group, a C1-C60 heterocyclic group, or —Si(Q11)(Q12)(Q13), and
• Q11 to Q13 are each independently hydrogen, deuterium, —F, —Cl, —Br, —I, a hydroxyl group, a cyano group, a C1-C30 alkyl group, a C2-C30 alkenyl group, a C2-C30 alkynyl group, a C1-C30 alkoxy group, or a C1-C30 alkylthio group.