Guardians of the Galaxy is the highest grossing movie of 2014 domestically, and a lack of any real competition this weekend should play into its favour as it rockets towards the $300 million mark. With early estimates pointing to a $2.7 million Friday, it's now on track to have a three day haul of roughly $10 million. Surprisingly, Let's Be Cops has moved up the charts and will likely finish in second place ahead of Teenage Mutant Ninja Turtles (which should reach something like $5.2 million). By the end of the weekend though, Guardians of the Galaxy will have around $294 million in total and should hit $300 million by roughly next Saturday or Sunday. While it would be easy to dismiss the Marvel movie's success as luck based on the fact that competition is almost non-existent, bear in mind that it opened five weeks ago, and Teenage Mutant Ninja Turtles - which originally took the #1 spot from it - hasn't had anywhere near the same level of staying power. Sin City: A Dame to Kill For is pretty much a distant memory by this point too...