Sometimes a deceivingly "small" story can pack a wallop, and that is the case with LaDarrion Williams’ ‘Boulevard of Bold Dreams,’ premiering at TimeLine Theatre before it moves on to Boston.

Set in 1940, this finely crafted script quickly establishes fully fleshed out characters Arthur (Charles Andrew Gardner), a bartender at Los Angeles’s Ambassador Hotel, and his friend, Dottie (Mildred Marie Langford), who is a maid there.

Both are recent arrivals from Alabama, friends since they were two. Arthur, an unapologetic optimist, came to pursue a dream of directing movies, while the more cynical Dottie, who is a singer, is fleeing more pain-filled circumstances back home.

This is a night like no other. It is February 29, 1940, the evening ‘Gone With the Wind’ will win a slew of Oscars and Hattie McDaniels will become the first Black actor to receive the award. But McDaniels (Gabrielle Lott-Rogers), as she enters the bar to avoid the press, only knows she has been nominated.

When she hesitantly appears at the doorway to the bar, it is clear McDaniels has goose-bump inducing star power. Credit director Malkia Stampley for the cadence of this entrance, the spotlighting, the costuming, and Lott-Rogers’ acting skills. It’s not overdone, just the right touch, to let us know a power player has arrived. And indeed, that was the case with McDaniels, whose dad put her on the stage beginning at 10, for his traveling minstrel shows.

The plot turns around McDaniel’s ambivalence about accepting the award at all. In the white world, the Oscar nomination looked like progress. (Ethel Waters had been nominated the year before.) But in the black community, there were mixed feelings: the NAACP felt the role of the step-n-fetch-it slave Mammy was a demeaning stereotype. Others felt “grin and bear it” for the value to future generations of a Black breakthrough. (This territory was covered in Alice Childress’ 1955 backstage drama, ‘Trouble in Mind,’ suppressed from wide exposure in its day and remarkably cogent in its TimeLine Theatre production in November.)

McDaniels also was sequestered to a table hidden in the ballroom corner of the ordinarily segregated Ambassador Hotel with her Black friends. She was not allowed to sit with Olivia de Havilland, Vivien Leigh, Clark Gable and the rest of the cast. She was given a prepared speech expressing the hope that she would remain “a credit to her race.” Ugh.

We know how McDaniels decided, and the footage of her acceptance is played. What playwright Williams gives us is the nuanced dimensions of the internal struggle within Daniels’ heart, and within the Black community. The interweaving of exposition and dramatic interchange is artful at an exceptional level. In an epilogue scene we hear the speech the playwright imagines McDaniels might have delivered, and it’s standing-ovation stuff.

A must-see show, ‘Boulevard of Bold Dreams’ runs through March 19 at TimeLine Theatre, 656 W. Wellington Ave. in Chicago.