Noiz2
Sound Ninja
Dave basically answered this but "Loop Group" is NOT ADR. It is recorded by the FX department and is used as part of the background/ ambience. It has nothing to do with dialog or ADR.
Now if you wanted to try and make you point you would have looked at the crew list. There are a number of ADR mixers listed and ADR editors. That means that they were recording ADR in multiple locations to accommodate actors next projects.
But as Dave and I both have said recording and using are two very different things. I would be impressed if an action film ended up using no ADR but it's certainly possible and jef is certainly good enough to someone who could pull that off.
The main point though is not whether some specific film used ADR (because with out talking to someone who was in that post you will never know), but that not a lot of ADR is used in major films.
It's a myth that Hollywood likes because it adds to the "magic" and lazy low budget filmmakers like to repeat because it's their excuse for why their sound sucks.
The real truth is that directors who don't think about sound before they start shooting almost always end up with bad sound. And directors who plan to get good sound almost always have good sound. It's not budget related.