Jason Reitman’s “Saturday Night” captures the chaotic 90 minutes leading up to the premiere of “Saturday Night Live” on Oct. 11, 1975. Though the film skillfully captures the atmosphere of the ‘70s with its 16mm style and talented cast, it ultimately fails to provide both the depth of the creation of the show and the intrigue of “SNL” original cast members.

Before it left our solar system forever, the Voyager 1 probe spun around and took our picture. “Pale Blue Dot,” as that photo has became known as, shows Earth, humankind’s only home, suspended in...