It would be curious, but probably severely hindered. Either you have small enough film to make the sensor cheap, or put in a big sensor at great cost to match a larger film area.

You could have two lenses attempting to recreate the field of view, from say, a small sensor to a 6x9 film or whatever, but that seems like a very convoluted way to make a product with limited appeal.

For me, digital and film have their benefits, but building digital into a film camera seems to limit the film camera with digital's problems such as a camera with large digital sensor is expensive, camera with large film area is not. Digital needs batteries, film does not.

I would rather see film and film cameras be marketed and succeed on their own merits. Film cameras have profound technical advantages over digital, not just the other way round, we should be shouting about that, really.