Film of the Coronation of Pope Pius XII
March 12, 1939.

The full film is available here.
An edited version with only the coronation:

Text of the words spoken at the coronation.*

Said by the Senior Cardinal Deacon, Cardinal Camillo Caccia-Dominioni, just before crowning the Pope:

Accipe Thiaram, tribus coronis ornatam, et scias te esse Patrem Principum et Regum, Rectorem Orbis, in terra Vicarium Salvatoris Nostri, Cui est honor, et gloria in sæcula sœculorum.

(Receive the tiara adorned with three crowns and know that thou art Father of Princes and Kings, Ruler of the World, Vicar of Our Savior on earth, to Him be the honor and glory forever and ever.)

Pius XII crowned. Crowd cheers and applauds.
Camera abruptly cuts to crowd.
Prayers said by Pius XII in the following gray box omitted from the film.

Sancti Apostoli Petrus et Paulus, de quorum potestate et auctoritate confidimus, ipsi intercedant pro nobis ad Dominum.

(May the holy Apostles Peter and Paul, of whose power and authority we are confident, intercede for us to the Lord.)

All: Amen.

Precibus et meritis beatæ Mariœ semper Virginis, beati Michaelis Archangeli, beati Ioannis Baptistæ et sanctorum Apostolorum Petri et Pauli et omnium Sanctorum misereatur vestri omnipotens Deus et dimissis omnibus peccatis vestris, perducat vos Iesus Christus ad vitam æternam.

(By the prayers and merits of blessed Ever-Virgin Mary, blessed Archangel Michael, blessed John the Baptist, Holy Apostles Peter and Paul and all the saints, may the all-powerful God have mercy on you and forgive all your sins to lead you through Jesus Christ to eternal life.)

All: Amen.

Prayers then heard, said by Pope Pius XII:

Plenary Indulgence

Indulgentiam absolutionem et remissionem omnium peccatorum vestrorum, spatium verœ et fructuosœ pœnitentiœ, cor semper pœnitens, et emendationem vitœ, gratiam et consolationem Sancti Spiritus, et finalem perseverantiam, in bonis operibus, tribuat vobis omnipotens et misericors Dominus.

(May the almighty and merciful Lord grant you pardon, absolution, and remission of all your sins, a space for true and fruitful repentance, an ever-contrite heart, the virtue to improve your life, the grace and consolation of the Holy Spirit, and final perseverance in good works.)

All: Amen

Apostolic Blessing

Et benedictio Dei omnipotentis, Patris, et Filii, et Spiritus Sancti, descentat super vos, et maneat semper.

(And the blessing of Almighty God, the Father, the Son, and the Holy Spirit, be upon you and remain with you always.)

All: Amen

Crowd cheers and applauds.

* As copied directly from the "Ritus Servandus" in use in the Papal Chapel by Hartwell de la Garde Grissell, Papal Chamberlain of Honor, beginning in 1869, to both Pius IX and Leo XIII and appearing in his Sede Vacante: being a diary written during the conclave of 1903, with additional notes on the Accession and Coronation of Pius X, Oxford and London, James Parker And Co., 1903, pgs. 74-75.