You can check this place out that has a list of Full HD 1080p 2D movie trailers converted to stereoscopic 3D side-by-side format available for download. The videos were converted with the 2D to 3D Realtime Video Conversion Script for Avisynth v0.3 script we are all working on here on this blog. The script can either be used for realtime video conversion, so you can watch directly from 2D video, but it can as well be used for conversion into a file, saving the result for later standalone use. Have in mind that converting trailers does not always provide the best results as they tend to use very brief and fast switching parts of scenes. Converting the full videos should provide much better results, but then again there are also other factors that influence the results, providing better or not so good illusion of depth.