If you were hoping for a single article combining both films, that would be unusual, as they share no cast, genre, or tone. Let me know if you’d like:
and Tinker Bell and the Lost Treasure are two completely unrelated films that happen to share a common word in their titles. While "Tinker Tailor Soldier Spy" is a gritty Cold War espionage thriller, "Tinker Bell and the Lost Treasure" is a magical Disney adventure centered on the famous fairy and a quest involving a moonstone. If you were hoping for a single article
A direct-to-video (but beautifully animated) Disney sequel. Tinker Bell tries to create a new sceptre for the Autumn Revelry using a rare, magical Moonstone. When the stone shatters, she must go on a dangerous journey to fix it — learning about friendship and responsibility. Moonstone = central magical object here. A direct-to-video (but beautifully animated) Disney sequel
If you enjoy "cerebral cat-and-mouse games" and don't mind a complex, sometimes confusing narrative that may require a second viewing, this is a must-watch. Tinker Bell and the Lost Treasure (2009) Moonstone = central magical object here