Instruction: First, identify the target attributes from the provided list. Then, scan the product title, description, feature, and brand to extract the values associated with each target attribute. Finally, create a list of dictionaries, each containing the extracted attribute, its corresponding value, and the source where it was found.

Input:
Product title: Colour of the Truth
Product description: COLOUR OF THE TRUTH - DVD Movie, The great Anthony Wong (Infernal Affairs, Beast Cops), Lau Ching Wan (Running Out Of Time), and Jordan Chan (The Young And Dangerous series) lead an all-star cast in this complex and hugely entertaining police action thriller about loyalty and revenge. Wong is a righteous officer who, during a sting operation to wipe out a gangster kingpin (Francis Ng), may have also killed his colleague. Ten years passed, and the two dead men's sons have grown up. They must decide whether to take on their fathers' killer together or alone.
Product price: $24.82
Product brand: Anthony Chau-Sang Wong
Target attributes: MPAA Rating
Answer: attribute: mpaa rating
value: None
source: None