Explanation for them needing Mr Toomy didn't hold water. 'spoilers'
'SPOILER ALERT'
Apparently, the other passengers needed Mr Toomy to distract the Langoliers from the airplane long enough to get away.
But really, they did a poor job of showing this. There were thousands of Langoliers, and only two of them went after Mr Toomy, that's all it took to take him out. They could have easily gotten all of them and still gotten Mr Toomy.
It looked more like that the Langoliers allowed the others to escape for whatever reason. Maybe they sensed they didn't belong in the past and wanted to give them a chance to get away.
I think Captain Engle at one point yelled at one of them to get away, but why would they listen to him unless it was some sort of forbearance. Mr Toomy was long dead by that time and the Langoliers were right next to the plane.
I know that was the explanation for it, the characters even said had it not been for MR Toomy the Langoliers would have gotten them all, it just wasn't well shown. It looked more like the Langoliers let them get away.
Also, I didn't think the movie really explained why the Langoliers went after Toomy in the first place and not the others. Just because his dad told him stories about them? How would they know that?
Otherwise good movie don't get me wrong, but the whole needing Toomy business was slightly lame IMO.