The box office race that was too close to call on Sunday became clearer on Monday. According to The Hollywood Reporter, Transformers: Revenge of the Fallen became the clear box office winner when updated box office estimates revealed the Michael Bay sequel took in $42.4 million, while Ice Age: Dawn of the Dinosaurs came in under its estimate, earning less than $42 million.

The initial initial box office report indicated both films earned an estimated $42.5 million over the holiday weekend, but it seemed Fox's estimates for Ice Age: Dawn of the Dinosaurs fell a little short.

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Final official box office numbers will be released later today, so we'll keep you updated on this box office race as soon as more information comes in.