Other mistake: When Cliff fights Bruce Lee the doors are already dented before Bruce gets tossed into them.
Continuity mistake: Just before Rick's appearance on The FBI is shown, Rick is holding a cigarette in his left hand and a can in his right hand. It then cuts to Rick pointing at the TV, and the cigarette and can are both in his right hand.
Answer: Yes, though the intention was not Tarantino's. What is onscreen is the trailer of the (real) 1970 film "C.C. and Company", which starred (as you might have guessed) Joe Namath and Ann-Margret. Said trailer showed their names twice, a stylistic choice that emphasized the film's stars, and Tarantino used the unaltered trailer in the film.