Unstoppable — a true-story sports flick — is produced by Matt Damon and Ben Affleck, who skipped the premiere. And that was thoughtful of him, because J.Lo and star Jharrel Jerome have been getting positive reviews and she SHOULD get to enjoy it without his glowering mug lurking in the background. She used the red carpet exactly the way we would have imagined: Of the Revenge Dress and the Hasty Revenge Makeover, J.Lo wisely eschewed the latter and instead leaned all the way into sideboob. Side everything, in fact. Side, period. She came ready.

[Photos: Todd Williamson / January Images, via Amazon, Emma McIntyre/Getty Images]