...and by rarely I mean OFTEN. It's trope-a-licious!*
http://www.quodb.com/search/%22there's+no+turning+back%22
^ now THAT is a handy, unique website! Just type a word or phrase, and see a listing of every film appearance along with its context / timestamp! (it works like magic based on some intelligent parsing of subtitles, what a simple but neat idea! its history explained here (http://lusob.com/2014/08/quodb/) -- apparently this is a drastic improvement of subzin.com (http://www.subzin.com/search.php?q=%22there%27s+no+turning+back%22) that a web developer built and is soon going to open-source! )
found via https://www.youtube.com/watch?v=X05TDsoSg2Y
"Every Frame a Painting" (a brief analysis re. SHOWING your character having to make a decision, instead of using words)
*PS: yup, there is indeed a TVTropes page for this. Although technically it's just the videogame examples :( http://tvtropes.org/pmwiki/pmwiki.php/Main/PointOfNoReturn
Oh AV Club comment community, you kids amuse me so...
http://www.avclub.com/article/new-search-engine-lets-you-quickly-find-your-favor-222577
Seriously, there's some sharp wit buried amongst the noise, there.