The name "Clow" (as in the Clow Cards and their creator Clow Reed) is very often mispronounced by non-Japanese speaking people. Its proper pronunciation is akin to the way it's written in Japanese: "kurou" (Koo-roh). If that's still too tough, remember that the name rhymes with "glow", with no accents anywhere. That's a mistake the English version of Cardcaptor Sakura
in the U.S.) makes: it's not said like "cow", it's said like "glow" or "oh".
Cardcaptor Sakura Clow Card Magic
takes a lot of elements out of the anime's storyline, but one of the biggest ones is a final round after the first 10 rounds have been fully completed where Sakura and Shaoran must take the Final Judgement against the Judge of the Clow Cards, Yue. Even Sakura's outfit that she wears in the game is the same as the one she wore in the episodes where Yue appeared!
The game's intro is the second TV series opening anime.