Prior to seeing Once Upon a Time in Hollywood , I braced myself for a Quentin Tarantino bloodbath on the order of Pulp Fiction , Reservoir Dogs , Kill Bill or Django Unchained . Instead, what I initially experienced was a fun romp through a 1960s Hollywood period piece, a buddy movie complete with tons of great original TV clips and music. I wondered if Tarantino was trying something new. And then, following a trail of bloody breadcrumbs, it took a dark turn down a dead end street called Cielo Drive and straight into the horrific Charles Manson murders of August 8, 1969. Oh yeah, spoiler alert, but knowing this won’t ruin the movie. Actually, knowing what I just told you, especially if you’re not a Baby Boomer, will help you research and prepare to understand what’s going on while Brad Pitt and Leonardo DiCaprio struggle with their diminishing roles in the movie business of the late ‘60s. Leo plays Rick Dalton, a fading TV tough guy trying to transition into movies, alongsi