How often was a new newsreel shown to the public in us cinemas?

In US cinemas, a new newsreel was shown typically once a week.

This was the standard practice from the early 20th century through the 1960s.

However, it's important to note that there was some variation depending on the specific theater and the newsreel distributor. Some theaters might have shown newsreels more often, perhaps even twice a week, especially in periods of major news events.

So, while once a week was the most common frequency, it wasn't a hard and fast rule.