What was this movie?

I checked the listings and they are off by 30 years and thousands of miles, so I place my fate in your capable hands.

It was on channel 20 in Chicago and started at 10PM, Saturday. I missed the first fifteen minutes of it. It was French, from the late sixties. Two guys, one young, one older, are on the pilgrimage to Santiago. Along the way there are odd time shifts, short discussions of Catholic dogma and the heresies, what looked like an Albigensian mass, a restaurant manager sermonized to his employees about the Trinity, and a duke and a Jesuit in a dual over the nature of grace.

What the hell was it?

The best thing you could do is find out what channel 20 is and check on-line listings or that station’s webpage.

Tried, but it’s our cheesy City Colleges public station and I couldn’t find the listings on their site. Anyway, here someone can tell me about the part I missed.

The plot you describe sounds remarkably similar to that of Monsignor Quixote a 1982 novel by Graham Greene. I wonder if he plagiarized the movie. Then again, it’s been 15 years since I read it, and there’s really only one scene from the novel that I remember: The monsignor compares the Father and the Son to bottles of wine, and the Holy Spirt to a half-drunk bottle. He then fears he has committed the unforgivable sin of blasphemy against the Holy Spirit.