Legendary hip-hop producer Pete Rock is kicking off the opening of the 2nd Annual Hip-Hop Show in Sao Paulo with a DJ show tonight at the Pompeia location of SESC for only 10 bucks. SESC’s a network of public cultural/rec centers run by the government, which means shows are always financially accessible. (Think about it: It’s like if, say, Gov. Arnold Schwarzenegger sponsored a hip-hop film fest. Uh, never.) He’s setting the tone for the week-long event, which will feature 13 films — all with free entry — repeated over the week so Paulistanos will have plenty of chances to get schooled on the history of American hip-hop, from Biggie Smalls and sneaker-freaker madness in Just for Kicks to Wu: The Story of the Wu Tang Clan and the graff documentary Rock Fresh. But new to this year’s edition are two national entries that explore the stories of Brazil’s old and new schools of hip-hop, divided into various shorts that date back to as early as 1990. Very fresh.