The Grateful Dead performing in Chicago on July 4th, 2015.

A couple months ago I journeyed to the Bryant Park Hotel in midtown Manhattan with a small group of aging reporters to watch the new Grateful Dead documentary, "Long Strange Trip." It opened in a weeklong limited release (New York and Los Angeles) this weekend.

The verdict: It's a very good four-hour movie that would have been a terrific slightly shorter movie, with a different ending.