In 1937, he and archaeologist Jules Barthou were in Yemen making preparations to film a documentary, the first ever of that country and one that includes the only known film image of Imam Yahya.
En 1937, el e o arqueólogo Jules Barthou estaban en Iemen preparándose para filmar un documental, o primeiro realizado nese país e no que se inclúe a única imaxe filmada coñecida do Imán Yahya.