Phineas and Ferb the Movie: Candace Against the Universe

Phineas and Ferb travel across the galaxy to rescue their older sister Candace, who has been abducted by aliens and taken to a utopia in a far-off planet, free of her pesky little brothers.

Museum Scream

When Sylvester hears that a children's museum's prize exhibit is Tweety Pie, he tires to raid the museum in order to have lunch. He doesn't succeed in his mission, due to Tweety's smartness, and the children.