When Michael Cera was announced as joining the cast of a Wes Anderson movie for the first time, the prevailing response was: Hadn’t he already been in a Wes Anderson movie.

“Asteroid City" is among Anderson’s most charmingly chock-full creations, a much-layered, ’50s-set fusion of science fiction, midcentury theater and about a hundred other influences ranging from Looney Tunes to “Bad Day at Black Rock.”.