One of the film industry’s most notorious writer/directors slows his roll into leisurely paced comedy and doesn’t quite succeed until things get violent. He’s clearly better at the Spaghetti Western than The Decline of Western Civilization. Quentin Tarantino’s Once Upon a Time…in Hollywood (C+) explores how movie stars are always one step away from their big break, whether because of talent, typecasting or breakout performances or, more commonly, because they join a celebrity entourage or get invited by famous neighbors to a cocktail. It’s no coincidence that two of the biggest stars in the world – Leonardo DiCaprio, portraying a boozy actor in career decline, and Brad Pitt, playing his stuntman and designated driver – steal the show with wile and charm. They deliver a lot of yummy tapas in the movie, but it doesn’t add up to a fully satisfying meal. Pitt is the charismatic one here, with a cadence and style he has honed before in the auteur’s revisionist history universe; quite frankly, he’s really good in his every sequence and has uncanny chemistry with an animal co-star. With a less interesting and underwritten character, DiCaprio lacks intrigue and consistency. He’s ironically at his best in a “movie within the movie” when his character is actually acting. Tarantino is, of course, endlessly fascinated with movie lore, so he includes in his spotty ‘60s pastiche some gorgeously filmed milieus and commentary about the transition of the Golden Age of Hollywood to something much different. He eschews many of his usual flourishes, and without a better style to replace them, they are missed. Subplots with Al Pacino and Margot Robbie build on the film’s themes but don’t ever become center stage in a captivating way. Boy, are there some great set pieces and play sets, including a Hollywood Hills home, two insider Mexican restaurants and a former Western movie backlot inhabited by Charles Manson acolytes. It’s a film full of imaginative notions not fully realized. Like a grindhouse double feature, this feels like a talky two hour character study followed by a thirty minute short in which those characters actually get to do what we’ve been wanting them to do all along.