Character mistake: When Rianna introduces Marvin to the animals at the shelter, she says, "We have macaws," and then shows him Cosmo, saying, "My friend Cosmo is a parrot." This does not make sense because "parrot" is a broad group of several bird species, including both Cosmo and the macaws. Cosmo appears to be a type of Conure.
Continuity mistake: Notice the hot girl Marvin's watching. She's facing forwards to pick up her keys then after a shot of Marvin suddenly she's facing him.
Continuity mistake: When Marvin pulls drugs out of the guy's pants they're in his right hand yet when he holds them up suddenly they're in his left.
Audio problem: The horse rider Marvin speaks to says "What?" yet his mouth never opens.