Suppose Avatar is a 2009 American epic science fiction film directed and written by James Cameron. The film stars Sam Worthington, Zoe Saldana, Sigourney Weaver, Stephen Lang, Michelle Rodriguez, and Giovanni Ribisi. The film is set in the mid-22nd century when humans are colonizing Pandora, a lush moon of a gas giant in the Alpha Centauri star system, in order to mine unobtanium, a superconductor.
Can we infer that "Avatar was the highest-grossing film of 2010."? Yes, no, or maybe?