I can offer only this advice..
you can TRY duplicating the video (without the title) and crop EACH layer slight;y to make left and right eye views… it wont be perfect, there will be fore and background issues with convergence i suspect.. but you could help reduce the overall noticeability of those defects by redoing the titles in 3d and keeping the viewers attention on the titles… in anaglyph 3d thee is a trick using a prisim filter effect to make a 2d shot look 3d, but OI don’t know of any others that will work especially well for you…
