The real one, not the DaVinci code nonsense.
The Church has never forgotten her. She is celebrated with her own Festival on this day:
Collect: Almighty God, Your Son Jesus Christ restored Mary Magdalene to health and called her to be the first witness of His resurrection. Heal us from all our infirmities and call us to know You in the power of Your Son's unending life; through the same Jesus Christ, Your Son, our Lord, who lives and reigns with You and the Holy Spirit, one God, now and forever.
Readings: Proverbs 31:10-31 / Acts 13:26-31 / John 20:1-2, 10-18
Preface: It is truly good, right, and salutary that we should at all times and in all places give thanks to You, holy Lord, almighty Father, everlasting God. And most especially are we bound to praise You for the glorious resurrection of Your Son, Jesus Christ, the very Paschal Lamb, who was sacrificed for us and bore the sins of the world. By His dying He has destroyed death and by His rising again He has restored to us everlasting life. Therefore, with Mary Magdalene, Peter and John, and all the witnesses of the resurrection, with angels and archangels and with all the company of heaven, we laud and magnify Your glorious name, evermore praising You and saying: Holy, holy, holy...