“Tom” (played by Steve Coogan) finds himself teaching at a private school near Buenos Aires, catering to wealthy families, after drifting through various jobs across South America. He's already feeling uninspired by his new position when he encounters “Timbuck” (Sir Jonathan Pryce), the seemingly extravagant headmaster. Things take an unexpected turn quickly: he meets his Finnish coworker "Tapio" (Björn Gustafsson), and a sudden coup forces the school to close, prompting them both to journey to Uruguay for some leisure time. However, “Tom’s” experience becomes more complicated when a stroll on the beach leads him into an encounter with an oil spill and a penguin coated in it. As is often the case, attempting to do something good results in unforeseen consequences, and he unexpectedly finds himself with a pet determined to stick around. Returning to school with his new fish-eating companion, he must conceal his secret while navigating interactions with students who reflect their fathers’ political views and dealing with an increasing wave of libertarian sentiment that causes distress for his kindhearted housekeeper (Vivian El Jaber), whose free-spirited granddaughter has been detained by the authorities. The film draws from a real event, and although I typically find Coogan's acting to be rather bland, he does connect well with his faithful "Juan Salvador," offering a blend of gentle sentimentality alongside moments of subtle threat, all enhanced by some wry remarks and Gustafsson’s surprisingly still performance. Sir Jonathan doesn't have enough screen time to make a significant impression, but ultimately the Magellan penguin steals the show, acting as a playful yet meaningful link between students, bullies, adults, and teachers in a generally pleasant way.

Source on TMDB