What is the oldest recorded filmed Catholic mass? Where can I view the oldest filmed recording of a mass?
What is the oldest recorded filmed Catholic mass?
The first televised Catholic Mass was on Christmas Eve 1948.

Letter of his Holiness Pope John Paul II to Cardinal Jean-Marie Lustiger for the 50th Anniversary of the First Broadcast of Midnight Mass Celebrated in the Cathedral of Norte-Dame de Paris
To Cardinal Jean-Marie Lustiger
Archbishop of Paris
On Christmas Eve in 1948, Fr Raymond Pichard, O.P., in agreement with the Société française de Télévision, had the good idea of the first-ever world-wide broadcast of the Midnight Mass celebrated in the Cathedral of Notre-Dame de Paris. On the occasion of the 50th anniversary of this event, which marked an important turning point in the proclamation of the Gospel, I willingly join in prayer all who contribute to the broadcast Le Jour du Seigneur, the pastors and faithful who are once again gathered in Notre-Dame de Paris on this occasion and all those who are following Christmas Mass on radio and television.
Through the media, the French public transmission offers Catholics and people of goodwill the opportunity to see or hear religious broadcasts: this also permits members of the faithful who are unable to go for serious reasons to participate in the Eucharistic celebration, especially on the days and times which, for the Christian community, are dedicated to Sunday and feast-day gatherings. This Christian presence over the air is part of the tradition of dialogue and openness which do France honour.
I ask Christ, whose birth among men we celebrate on this most holy night, to be close to all who are taking part in this liturgy or joining in it thanks to the media. May the Saviour, who came to bring peace to the world, give comfort and hope to all people of goodwill, so that together they can build a society of justice and love! On the occasion of this 50th anniversary of the televised broadcast of Mass, I cordially impart my Apostolic Blessing to all who contribute to this broadcast and its transmission, as well as to the celebrants, preachers, Christian communities and faithful who join in the liturgy by means of radio and television.
From the Vatican, 2 December 1998.
Ioannes Paulus PP. II

Where can I view the oldest filmed recording of a mass?
The first Catholic Mass was aired by the French broadcasting company Le Jour du Seigneur in 1949.

The oldest French television series that is still running. Since 1949, it has aired every Sunday morning for an hour and a half. The program airs Catholic religious ceremonies, interviews and testimonials.


Le Jour du Seigneur est issu du travail précurseur du père dominicain Raymond Pichard. Le 24 décembre 1948, il obtient la retransmission de la messe de minuit depuis la cathédrale Notre-Dame de Paris sur RDF Télévision française . C'est une première mondiale. - Le Jour du Seigneur (émission de télévision)

Noël historique: La première messe télévisée en direct de Notre-Dame de Paris IMBd
Until I can find a complete source, please accept a partial viewing of this mass from a French YouTube video: Messe de Noël 1948 (INA)
Hopefully I will be able to find the complete Mass for you shortly.